Note: This article is part of a series. Part 1 below establishes Irenaeus’s systematic theology as supportive of Conditional Immortality. Part 2 addresses modern scholars and critics of this view and their interpretations of Irenaeus. Part 3 explores how Irenaeus fits into the theological life of the church in its historical unfolding. You can also view the entire article in PDF here.
Abstract
Conditional immortality, also known as annihilationism, asserts that salvation involves being granted immortality, while damnation entails the cessation of life and personal existence at the final judgment. Many adherents argue that the Bible supports this view but add that its legitimacy also depends on whether it was taught by the earliest Christian theologians, ensuring it reflects intentional apostolic doctrine rather than later interpretive assumptions. Historically, the third to fourth century Christian writer Arnobius of Sicca is often identified as an early proponent of conditional immortality, lending credence to its acceptance as a tolerated minority view in early Christianity. Increasingly, however, modern defenders argue that the second-century church father St. Irenaeus of Lyons also supported this perspective, citing passages from his Against Heresies as evidence.
This article systematically examines Irenaeus’s teachings on human nature, the soul, and final punishment, engaging with modern conditionalist interpretations and opposing arguments for eternal torment. Building upon Chris Date’s prior work, which analyzed a single chapter of Against Heresies, this study evaluates Irenaeus’s entire extant corpus, including fragments and related writings by his contemporaries. By situating Irenaeus’s theology within its historical and theological context, this article argues that conditional immortality was central to his understanding of resurrection and final judgment.
Introduction
Irenaeus, writing in the second century, is the earliest theologian to have left a comprehensive discussion of Christian doctrine. His seminal work, Against Heresies, systematically refutes the teachings of various Gnostic groups while articulating a vision of orthodox Christianity. In the text, he addresses key topics such as human nature, the resurrection, and final judgment. Modern conditionalists (i.e., those who hold to conditional immortality) argue that his treatment of these themes demonstrates that he intended to teach their view.
Only two major texts from Irenaeus have been passed down to us. Against Heresies was occasioned by disputed doctrines of many teachers, collectively called Gnostics. Irenaeus began by trying to list their doctrines, but quickly (in book 2) turned to explaining Christianity so that he could contrast it to their doctrines, producing in the process the first thorough discussion of Christian doctrine (even if it’s not as systematic as would later be penned by Augustine). He also wrote a short document named A Demonstration of the Apostolic Doctrines, and although some other very interesting documents have been lost to the ages, there are a small collection of sentences or paragraphs allegedly written by him as part of larger writings; one such fragment which is attributed by some to his now-lost work On the Resurrection may cast some light on this topic as well.
Close Context: The Salvation of Man
This section sets the foundation by summarizing Chris Date’s blog post titled “Deprived of Continuance,” a good example of a conditionalist presentation built on Irenaeus’s language. He quotes from Against Heresies 2.34.3 as follows:
He thus speaks respecting the salvation of man: “He asked life of Thee, and Thou gavest him length of days for ever and ever;” indicating that it is the Father of all who imparts continuance for ever and ever on those who are saved. For life does not arise from us, nor from our own nature; but it is bestowed according to the grace of God. And therefore he who shall preserve the life bestowed upon him, and give thanks to Him who imparted it, shall receive also length of days for ever and ever.
Irenaeus frames this grant of continued existence and “length of days forever” as “concerning the salvation of man,” establishing the claim that this is actually about the final fate of the saved. Date examines Irenaeus’s view of the converse, those who are judged as wicked, from Against Heresies 2.34.3, exactly as quoted in Date’s blog post:
It is the Father of all who imparts continuance for ever and ever on those who are saved … [who] shall receive also length of days for ever and ever. But he who shall reject it … deprives himself of [the privilege of] continuance for ever and ever … shall justly not receive from Him length of days for ever and ever.
It is from this theme, “Deprived of Continuance,” that Date titled his blog post. The quote as edited by him emphasizes that it weighs both the positive and negative side of salvation; what humans are saved from as well as what they are saved into. These passages are naturally what conditionalists focus on; it appears that both the salvation of the righteous and the punishment of the wicked is founded on granting or denying embodied life and existence forever.
Turning to the larger corpus, Irenaeus has recorded some related thoughts in two other passages, one interpreting the “he asked life of thee” quote, Psalm 21:4, and the other examining the distinction between God’s active causation of salvation and His passive allowance of condemnation. In the Demonstration of Apostolic Teaching paragraph 72, he interprets the Psalm as Messianic:
“…the prophet declares that after dying and rising again He was to remain immortal, (saying) thus: “He asked life and thou gavest (it) him, and length of days for ever and ever.” Now what is this that he says, He asked life, since He was about to die? He proclaims His resurrection from the dead, and that being raised from the dead He is immortal. For He received both life, that He should rise, and length of days for ever and ever, that He should be incorruptible.”
So Irenaeus sees this as twofold: first, continuance of the present life; and second, as an eternal continuance granting the vastly greater gifts of immortality and incorruption for ongoing life. Just as in the Demonstration of Apostolic Teaching Irenaeus uses that verse as an affirmative prophecy of two things that will happen to Jesus, so also in this passage of Against Heresies he uses it as an affirmative prophecy of what will happen to those who “give thanks to Him who bestowed [brief temporal life],” as opposed to the denial of such continuance (let alone length of days forever) to those who “prove themselves ungrateful.” Date’s argument comports well with its immediate context, addressing the salvation of man as giving to man life and immortality in all of his parts, and the lack of salvation as the denial of continuance in existence like that possessed even by inanimate objects. It follows, then, that from his Against Heresies passage, Irenaeus believes that resurrection including immortality and incorruption is given only to Jesus and those who are resurrected in His likeness (that is, only to believers). This puts Irenaeus directly against eternal torment as it’s expressed in documents like the Catholic Catechism, which says “Q: what is ‘rising’? A: God … will definitively grant incorruptible life to our bodies;” and “Q: who will rise? A: All the dead will rise, ‘… those who have done evil, to the resurrection of judgment,’”. Similarly, the original text of the Belgic Confession claims, “The evil ones will be convicted by the witness of their own consciences, and shall be made immortal— but only to be tormented…”
Theme: Punishment is Passive, Salvation is Active
Irenaeus elaborates elsewhere on the distinction seen above in Against Heresies 2.34 between God’s active causation of salvation and His passive allowance of punishment. In Against Heresies 5.27.2, he emphasizes the apostate’s active role in rejecting God, stating that “He inflicts that separation from Himself which they have chosen of their own accord.” However, since “separation from God is death,” this self-chosen separation results in a divine punishment: “death, darkness, and the loss of all the benefits which He has in store.” Far from redefining death to mean mere separation, Irenaeus means it as the end of life, but wishes to emphasize God’s passive role in allowing it to emerge from free choice.
To clarify, Irenaeus’s phrase “separation from God is death” can be likened to saying that separation from oxygen is asphyxiation—where the second term describes the inevitable result of the first, rather than redefining it. Thus, the punishment for sin is primarily rooted in natural consequences: those who reject God’s life-giving Spirit experience death as the loss of life itself. Irenaeus affirms this understanding in Against Heresies 2.34.3, where he writes, “those who, in this brief temporal life, have shown themselves ungrateful to Him who bestowed it, shall justly not receive from Him length of days for ever and ever.”
In addition to natural consequences that befall the ungrateful, Irenaeus also acknowledges deserved, proportional retribution that is due for specific sins. In Against Heresies 2.34.1, he writes that “[each class of souls] receives a habitation such as it has deserved, even before the judgment,” and in Against Heresies 4.36.6, he affirms that “the most righteous Retributor metes out [punishment] according to their deserts.” While Irenaeus does not explicitly elaborate on the nature of these deserved punishments, his statement in Against Heresies 5.27.2 — that the wicked “experience every kind of punishment” — suggests that the possible scope of these punishments is enormous, but the actual specifics would be tailored to the sinner’s actions, as determined by God’s perfect judgment. This unifies Irenaeus’s systematic insistence that God punishes only passively with his occasional statement that God punishes according to what is deserved while accounting for the language of “[experiencing] every kind of punishment.”
Irenaeus’s understanding of death itself as a form of punishment also reinforces this distinction between God allowing consequences and intending them for themselves. In Against Heresies 3.23.6, he provides an explanation of death’s institution as both a natural and deserved consequence, and a boundary for sin:
Wherefore also He [God] drove him [Adam] out of Paradise, and removed him far from the tree of life, not because He envied him the tree of life, as some venture to assert, but because He pitied him, [and did not desire] that he should continue a sinner for ever, nor that the sin which surrounded him should be immortal, and evil interminable and irremediable. But He set a bound to his [state of] sin, by interposing death, and thus causing sin to cease, putting an end to it by the dissolution of the flesh, which should take place in the earth, so that man, ceasing at length to live to sin, and dying to it, might begin to live to God.
Here, death is not simply a separation but a cessation: the end of animate life. It disables sin by depriving the flesh of animation and the soul of its breath, ultimately bringing both to an end — the flesh when the body dies, but body and soul together at the judgment. The means God chooses to impose this is not typically actively killing humans, but rather withholding any ability to extend their life either indefinitely or forever, a passive imposition. Likewise, Irenaeus’s purpose “so that man … might begin to live to God” clarifies that God imposes death not merely to end sin by ending man (although this is the natural result if man does not repent) but also to motivate man to repent before death ends his ability (see also Ecclesiastes 12:1ff “remember your creator … before” the body slowly loses its capabilities). Death, therefore, is a deterrence to those only tempted by ingratitude; an incapacitation to the unrepentant; complete retribution for shunning God; and restitution to any harmed by one’s sins — and yet it is not an alien imposition, since apart from divine action humans by nature live only a “brief temporal life” and must therefore expect an end.
Finally, it is significant that Irenaeus applies this principle not just to humanity in general but in Against Heresies 3.23.8 also to Adam specifically. Irenaeus holds as dogma that Adam himself was so affected by God’s imposition of death and offer of the gospel that he repented and was saved. This underscores the dual purpose of death: to bring sin to an end while offering man the opportunity and motivation to turn back to God.
Broader Context: An Individual’s Body versus Reincarnation
The immediate context of “the salvation of men,” then, works with Date’s argument. It remains to answer why its chapter (Against Heresies 2.34) begins with a discussion of the intermediate state. In response, the chapter is actually embedded in a broader discussion of the life of humanity, how the soul and body work together in the grand plan of salvation, ordering for each person begetting, life, the death of the body, the intermediate state of the soul, and for all humans gathered together at the end of the age, the final judgment. This is taught in the immediately preceding text, Against Heresies 2.33.5, which says:
God … [confers] its own proper soul on each individual body… And therefore, when the number is completed, [that number] which He had predetermined in His own counsel, all those who have been enrolled for life [eternal] shall rise again, having their own bodies, and having also their own souls, and their own spirits, in which they had pleased God. Those, on the other hand, who are worthy of punishment, shall go away into it, they too having their own souls and their own bodies, in which they stood apart from the grace of God. Both classes shall then cease from any longer begetting and being begotten, from marrying and being given in marriage; so that the number of mankind, corresponding to the fore-ordination of God, being completed, may fully realize the scheme formed by the Father.
So the point of discussing the intermediate state was not that Irenaeus was focused on it; it was elaborating God’s plan to bring each enumerable unique person, as a whole body and soul, from their own life up to the day of judgment where they will be numbered and judged en masse; this being said in order to oppose the doctrines of reincarnationists who think that souls don’t have their own body and therefore there is no judgment for a whole person as body and soul, let alone for all humans together. And although a modern reader’s attention is drawn to the chapter break at which Irenaeus begins discussing the intermediate state, the original text has no known chapter breaks; rather, Irenaeus logically passes from discussing the final judgment to discussing how the soul is preserved for that judgment and in what its final salvation (or punishment) consists, at which time the righteous are given life forever and the wicked are deprived of continuance. And both points work together to explain the difference between reincarnation and Christianity, while keeping the emphasis on the eternal punishment as privation of all good things, not on temporary conditions like those experienced on the day of judgment or in the intermediate state — a question important enough to Irenaeus to put it early in the scope of his entire work.
Theme: the Soul and Spirit
In the above quote of Against Heresies 2.33.5, Irenaeus states that the righteous are raised whole with body, soul, and spirit; while of the wicked he mentions only body and soul. It turns out that this is not an accident but a systematic part of his anthropology and soteriology, and will cast a good deal of light on other passages in his work, and serves as a unifying theme for this paper. Irenaeus dives into detailed discussion of this in Against Heresies 5.12.2 (emphasis added):
For the breath of life, which also rendered man an animated being, is one thing, and the vivifying Spirit another, which also caused him to become spiritual. … breath is indeed given in common to all people upon earth, but that the Spirit is theirs alone who tread down earthly desires. … The Spirit [is] peculiar to God which in the last times He pours forth upon the human race by the adoption of sons; but [he shows] that breath was common throughout the creation, and points it out as something created. Now what has been made is a different thing from him who makes it. The breath, then, is temporal, but the Spirit eternal. The breath, too, increases [in strength] for a short period, and continues for a certain time; after that it takes its departure, leaving its former abode destitute of breath. But when the Spirit pervades the man within and without, inasmuch as it continues there, it never leaves him. “But that is not first which is spiritual,” says the apostle, speaking this as if with reference to us human beings; “but that is first which is animal, afterwards that which is spiritual,” in accordance with reason.
This distinction explains why Irenaeus describes the wicked as approaching judgment with only body and soul, while the righteous approach with body, soul, and spirit. It also explains Against Heresies 2.34.4 saying that “the soul herself is not life, but partakes in that life bestowed upon her by God … by the participation of life the soul became alive; so that the soul, and the life which it possesses, must be understood as being separate existences.” In his anthropology, the soul depends on an external source for life: the temporal “breath of life” granted to all humans, or the eternal Holy Spirit, given to Christians who walk faithfully in Him and from whom He “never leaves.”
The temporal breath renders natural humans inherently finite in life, and when their breath departs at death, they are deprived of life as a complete person. Irenaeus underscores this in Against Heresies 5.6.1: “[n]either is the soul itself, considered apart by itself, the man; but it is the soul of a man, and part of a man.” While the soul remains animate in the “invisible place allotted” (Against Heresies 2.34.1, 5.31.2) until judgment, it is not the whole person. By contrast, the righteous, walking in the Spirit, are granted life forever. Irenaeus continues in 5.6.1 by interpreting 1 Thessalonians 5:23: “may your whole spirit and soul and body be preserved blameless.” Only those with the Spirit of God remaining in them, preserving faith and righteousness in this life and, having grown in the holiness appropriate to the dwelling of God (Against Heresies 5.6.2), are given life and continuance forever.
Irenaeus’s omission of the spirit in discussions of the judgment of unbelievers is deliberate, highlighting their temporal existence. Deprived of the Spirit, they lose the breath of life without receiving an eternal replacement, leading to their ultimate loss of life and continuance.
An Examination of a Fragment
One more source is worth examining: the challenge is that this is a fragment, not a complete document, and this will present evidence that it has been misinterpreted when being reconstructed. This is from the Schaff collection of church fathers’ writings, which takes it from the Roberts-Donaldson English Translation’s section titled “Fragments from Lost Writings.” Reconstruction requires help from the Latin/Greek collection by Harvey (in which it is numbered Fragment 12). To avoid a bit of speculative reconstruction that was added to the Latin by its editor, Harvey, and copied into the English unfortunately without any marking, it will be presented in two parts, removing the entire speculative addition (unfortunately also removing two Latin words of the surviving text which are not translatable apart from speculation). The first part begins, emphasis added:
We therefore have formed the belief that [our] bodies also do rise again. For although they go to corruption, yet they do not perish; for the earth, receiving the remains, preserves them, even like fertile seed mixed with more fertile ground. Again, as a bare grain is sown, and, germinating by the command of God its Creator, rises again, clothed upon and glorious, but not before it has died and suffered decomposition, and become mingled with the earth; so [it is seen from this, that] we have not entertained a vain belief in the resurrection of the body. But although it is dissolved at the appointed time, because of the primeval disobedience, it is placed, as it were, in the crucible of the earth, to be recast again; not then as this corruptible, but pure, and no longer subject to decay: so that to each body its own soul shall be restored; and when it is clothed upon with this, it shall not experience sorrow, but shall rejoice, continuing permanently in a state of purity, having for its companion a just consort, not an insidious one, possessing in every respect […]
This perfectly comports with orthodox teaching on Christian doctrine on the resurrection (whether conditionalist or eternal torment), and fits Irenaeus well. The next part, separated by a grammatically confusing glitch which the collection’s editor attributes to a few missing words, runs:
[…]shall not receive bodies diverse from what they had been, nor delivered from suffering or disease, nor as [rendered] glorious, but as they departed this life, in sins or in righteous actions: and such as they were, such shall they be clothed with upon resuming life; and such as they were in unbelief, such shall they be faithfully judged.
Harvey’s speculative addition removes a grammatical irregularity, but it also introduces express contradictions. The extant text speaks, on the one hand, of each person’s soul raised in his or her glorious body (singular) without sorrow, and, on the other, of a singular mass of people with non-glorious bodies (notice the switch to plural bodies) not delivered from suffering. It makes little sense to propose, as Harvey’s reconstruction implies, that these are the same. A more plausible resolution is that the first part describes the resurrection of each righteous person with glory, honor, and incorruption (as in Romans 2:7). Some intervening text may have been lost, which I propose would have clarified the second part, identifying “the wicked” as a singular group collectively raised with “bodies [not] delivered from suffering and disease, nor glorious”—that is, the same corruptible bodies they died with, expressly unglorified, to be given over to judgment.
Although modern theology (as reflected in the two confessions quoted above) often speaks of a general resurrection of all flesh and all with immortality, there is actually no explicit Biblical support for this notion. Instead, passages such as John 5:28-29 suggest a single moment when all people emerge from their tombs, yet with two distinct resurrections: a “resurrection of life” and a “resurrection of judgment.” Other texts, such as Luke 20:35, emphasize the exclusivity of “being found worthy to attain to the resurrection.” Revelation 20, meanwhile, depicts two resurrections separated by a significant span of time. 1 Corinthians 15 is often quoted to support a universal resurrection to immortality, but it can be read as speaking only of the righteous — those who, per 1 Corinthians 15:2, are saved as opposed to those who do not hold fast to the gospel. It is even plausible that the passage never addresses the unrepentant except by implied exclusion, as the language about “enemies” only directly mentions “powers.” In Irenaeus’s summary of the faith, Demonstration of the Apostolic Teaching 42, he confirms the uniqueness of the resurrection of the righteous:
For such is the state [162] of those who have believed, since in them continually abides the Holy Spirit, who was given by Him in baptism, and is retained by the receiver, if he walks in truth and holiness and righteousness and patient endurance. For this soul has a resurrection in them that believe, the body receiving the soul again, and along with it, by the power of the Holy Spirit, being raised up and entering into the kingdom of God.
This conceptual distinction between two resurrections finds a vivid articulation in the Demonstrations of St. Aphrahat of Syria. In Demonstration 6.18, Aphrahat offers a strikingly similar depiction of the divergent fates awaiting the righteous and the wicked:
Again he said:—Suddenly as the twinkling of an eye, the dead shall rise incorruptible and we shall be changed. And they who shall be changed shall put on the form of that heavenly Adam and shall become spiritual. And those who shall not be changed, shall continue ‘animal’ in the created nature of Adam, namely, of dust; and shall continue in their nature in the earth below. And then the heavenly shall be caught up to heaven and the Spirit that they have put on shall cause them to fly, and they shall inherit the kingdom that was prepared for them from the beginning. And they that are animal shall remain on the earth by the weight of their bodies, and shall turn back to Sheol, and there shall be weeping and gnashing of teeth.
This distinction underscores not only the duality of resurrections but also the qualitative difference between the two outcomes: one marked by spiritual transformation, elevation, and incorruption, the other by earthly descent, decay, and ultimate judgment.
Aphrahat’s vision aligns closely with Irenaeus’s theological framework, reflecting a strand of early Christian eschatological thought traceable to Ignatius and other early fathers. By distinguishing between the transformed, heavenly destiny of the righteous and the untransformed, earthbound fate of the wicked, Aphrahat mirrors biblical themes found in passages like John 5:28–29, Luke 20:35, and Revelation 20. His depiction also directly supports this alternative to the now traditional interpretation of 1 Corinthians 15.
Irenaeus’s surviving works reflect a similarly structured theology that places the Spirit at the center of immortality and incorruption. For Irenaeus, the glorification of the body and the eternal life of the soul depend entirely on the Spirit’s participation — a theme consistently affirmed in Against Heresies. As he writes in Against Heresies 5.12.2, only bodies in which the Spirit participates are made immortal. This concept is elaborated further in Against Heresies 5.9.4, where Irenaeus interprets Paul’s statement that “flesh and blood cannot inherit the kingdom of God” (1 Corinthians 15:50). Against the Gnostic denial of bodily resurrection, Irenaeus affirms the orthodox Christian view that the body partakes in salvation:
If, however, we must speak strictly, [we would say that] the flesh does not inherit, but is inherited … the flesh cannot by itself possess the kingdom of God by inheritance; but it can be taken for an inheritance into the kingdom of God. For a living person inherits the goods of the deceased; and it is one thing to inherit, another to be inherited. […] What, therefore, is it that lives? The Spirit of God, doubtless. What, again, are the possessions of the deceased? The various parts of the man, surely, which rot in the earth. But these are inherited by the Spirit when they are translated into the kingdom of heaven. For this cause, too, did Christ die, that the Gospel covenant … might constitute them heirs of His property, when the Spirit possesses them by inheritance. For he who lives inherits, but the flesh is inherited. In order that we may not lose life by losing that Spirit which possesses us, the apostle, exhorting us to the communion of the Spirit, has said, according to reason, in those words already quoted, “That flesh and blood cannot inherit the kingdom of God.”
Irenaeus’s reasoning ties seamlessly into his broader theology. With his assumptions about the Spirit’s role in granting life, the conditionality of immortality becomes clear. Only through participating in the Spirit can a repentant sinner’s body be inherited into the age to come, transformed into an immortal, spiritual body rather than remaining a merely “soulish body” animated by the soul alone (as Paul describes in 1 Corinthians 15). Believers themselves become the eternal dwelling place and the temple of the Spirit, ensuring the redemption of both body and soul as promised in “our adoption as sons, the redemption of our bodies” (Romans 8:23).
Closing: Irenaeus and the Conditionalist Framework
The preceding analysis demonstrates that Irenaeus’s theology is deeply rooted in the concept of life and immortality as divine gifts reserved for the righteous. His systematic understanding of human nature, resurrection, and final judgment portrays salvation as the active bestowal of incorruptible life, while punishment is framed as a passive deprivation of all good, including continued existence. This aligns seamlessly with the conditionalist perspective, which emphasizes the dependence of the soul on God for life and the ultimate cessation of the wicked in judgment.
Irenaeus consistently distinguishes between body, soul, and Spirit, emphasizing the transformative role of the Spirit in granting eternal life to believers. For Irenaeus, the soul’s survival beyond bodily death is temporary and contingent, with eternal life conferred solely through union with God’s Spirit. In contrast, those who reject this grace are denied “continuance for ever and ever,” ultimately ceasing to exist. These theological insights not only clarify Irenaeus’s position but also illuminate a broader framework in which life, immortality, and judgment are inseparably tied to God’s will and human response. This foundation sets the stage for deeper engagement with contemporary critiques and an exploration of Irenaeus’s theological legacy.
* * * * *
Note: This article is part of a series. Following on from Part 1 above, Part 2 addresses modern scholars and critics of this view and their interpretations of Irenaeus. Part 3 explores how Irenaeus fits into the theological life of the church in its historical unfolding.
Irenaeus and Continuance (Part 1): To Be Continued (Or Not?)
Note: This article is part of a series. Part 1 below establishes Irenaeus’s systematic theology as supportive of Conditional Immortality. Part 2 addresses modern scholars and critics of this view and their interpretations of Irenaeus. Part 3 explores how Irenaeus fits into the theological life of the church in its historical unfolding. You can also view the entire article in PDF here.
Abstract
Conditional immortality, also known as annihilationism, asserts that salvation involves being granted immortality, while damnation entails the cessation of life and personal existence at the final judgment. Many adherents argue that the Bible supports this view but add that its legitimacy also depends on whether it was taught by the earliest Christian theologians, ensuring it reflects intentional apostolic doctrine rather than later interpretive assumptions. Historically, the third to fourth century Christian writer Arnobius of Sicca is often identified as an early proponent of conditional immortality, lending credence to its acceptance as a tolerated minority view in early Christianity. Increasingly, however, modern defenders argue that the second-century church father St. Irenaeus of Lyons also supported this perspective, citing passages from his Against Heresies as evidence.
This article systematically examines Irenaeus’s teachings on human nature, the soul, and final punishment, engaging with modern conditionalist interpretations and opposing arguments for eternal torment. Building upon Chris Date’s prior work, which analyzed a single chapter of Against Heresies, this study evaluates Irenaeus’s entire extant corpus, including fragments and related writings by his contemporaries. By situating Irenaeus’s theology within its historical and theological context, this article argues that conditional immortality was central to his understanding of resurrection and final judgment.
Introduction
Irenaeus, writing in the second century, is the earliest theologian to have left a comprehensive discussion of Christian doctrine. His seminal work, Against Heresies, systematically refutes the teachings of various Gnostic groups while articulating a vision of orthodox Christianity. In the text, he addresses key topics such as human nature, the resurrection, and final judgment. Modern conditionalists (i.e., those who hold to conditional immortality) argue that his treatment of these themes demonstrates that he intended to teach their view.
Only two major texts from Irenaeus have been passed down to us. Against Heresies was occasioned by disputed doctrines of many teachers, collectively called Gnostics. Irenaeus began by trying to list their doctrines, but quickly (in book 2) turned to explaining Christianity so that he could contrast it to their doctrines, producing in the process the first thorough discussion of Christian doctrine (even if it’s not as systematic as would later be penned by Augustine). He also wrote a short document named A Demonstration of the Apostolic Doctrines, and although some other very interesting documents have been lost to the ages, there are a small collection of sentences or paragraphs allegedly written by him as part of larger writings; one such fragment which is attributed by some to his now-lost work On the Resurrection may cast some light on this topic as well.
Close Context: The Salvation of Man
This section sets the foundation by summarizing Chris Date’s blog post titled “Deprived of Continuance,” a good example of a conditionalist presentation built on Irenaeus’s language. He quotes from Against Heresies 2.34.3 as follows:
He thus speaks respecting the salvation of man: “He asked life of Thee, and Thou gavest him length of days for ever and ever;” indicating that it is the Father of all who imparts continuance for ever and ever on those who are saved. For life does not arise from us, nor from our own nature; but it is bestowed according to the grace of God. And therefore he who shall preserve the life bestowed upon him, and give thanks to Him who imparted it, shall receive also length of days for ever and ever.
Irenaeus frames this grant of continued existence and “length of days forever” as “concerning the salvation of man,” establishing the claim that this is actually about the final fate of the saved. Date examines Irenaeus’s view of the converse, those who are judged as wicked, from Against Heresies 2.34.3, exactly as quoted in Date’s blog post:
It is the Father of all who imparts continuance for ever and ever on those who are saved … [who] shall receive also length of days for ever and ever. But he who shall reject it … deprives himself of [the privilege of] continuance for ever and ever … shall justly not receive from Him length of days for ever and ever.
It is from this theme, “Deprived of Continuance,” that Date titled his blog post. The quote as edited by him emphasizes that it weighs both the positive and negative side of salvation; what humans are saved from as well as what they are saved into. These passages are naturally what conditionalists focus on; it appears that both the salvation of the righteous and the punishment of the wicked is founded on granting or denying embodied life and existence forever.
Turning to the larger corpus, Irenaeus has recorded some related thoughts in two other passages, one interpreting the “he asked life of thee” quote, Psalm 21:4, and the other examining the distinction between God’s active causation of salvation and His passive allowance of condemnation. In the Demonstration of Apostolic Teaching paragraph 72, he interprets the Psalm as Messianic:
“…the prophet declares that after dying and rising again He was to remain immortal, (saying) thus: “He asked life and thou gavest (it) him, and length of days for ever and ever.” Now what is this that he says, He asked life, since He was about to die? He proclaims His resurrection from the dead, and that being raised from the dead He is immortal. For He received both life, that He should rise, and length of days for ever and ever, that He should be incorruptible.”
So Irenaeus sees this as twofold: first, continuance of the present life; and second, as an eternal continuance granting the vastly greater gifts of immortality and incorruption for ongoing life. Just as in the Demonstration of Apostolic Teaching Irenaeus uses that verse as an affirmative prophecy of two things that will happen to Jesus, so also in this passage of Against Heresies he uses it as an affirmative prophecy of what will happen to those who “give thanks to Him who bestowed [brief temporal life],” as opposed to the denial of such continuance (let alone length of days forever) to those who “prove themselves ungrateful.” Date’s argument comports well with its immediate context, addressing the salvation of man as giving to man life and immortality in all of his parts, and the lack of salvation as the denial of continuance in existence like that possessed even by inanimate objects. It follows, then, that from his Against Heresies passage, Irenaeus believes that resurrection including immortality and incorruption is given only to Jesus and those who are resurrected in His likeness (that is, only to believers). This puts Irenaeus directly against eternal torment as it’s expressed in documents like the Catholic Catechism, which says “Q: what is ‘rising’? A: God … will definitively grant incorruptible life to our bodies;” and “Q: who will rise? A: All the dead will rise, ‘… those who have done evil, to the resurrection of judgment,’”.1Catechism of the Catholic Church 997-999, fetched 01/15/2025 from https://www.catholiccrossreference.online/catechism/#!/search/997-999 Similarly, the original text of the Belgic Confession claims, “The evil ones will be convicted by the witness of their own consciences, and shall be made immortal— but only to be tormented…”2Belgic Confession, the future tense of “shall be made” conforms with old Latin and original French (as opposed to some modern English renditions which say “being immortal”); English fetched 01/15/2025 from https://www.crcna.org/sites/default/files/BelgicConfession.pdf
Theme: Punishment is Passive, Salvation is Active
Irenaeus elaborates elsewhere on the distinction seen above in Against Heresies 2.34 between God’s active causation of salvation and His passive allowance of punishment. In Against Heresies 5.27.2, he emphasizes the apostate’s active role in rejecting God, stating that “He inflicts that separation from Himself which they have chosen of their own accord.” However, since “separation from God is death,” this self-chosen separation results in a divine punishment: “death, darkness, and the loss of all the benefits which He has in store.” Far from redefining death to mean mere separation, Irenaeus means it as the end of life, but wishes to emphasize God’s passive role in allowing it to emerge from free choice.
To clarify, Irenaeus’s phrase “separation from God is death” can be likened to saying that separation from oxygen is asphyxiation—where the second term describes the inevitable result of the first, rather than redefining it. Thus, the punishment for sin is primarily rooted in natural consequences: those who reject God’s life-giving Spirit experience death as the loss of life itself. Irenaeus affirms this understanding in Against Heresies 2.34.3, where he writes, “those who, in this brief temporal life, have shown themselves ungrateful to Him who bestowed it, shall justly not receive from Him length of days for ever and ever.”
In addition to natural consequences that befall the ungrateful, Irenaeus also acknowledges deserved, proportional retribution that is due for specific sins. In Against Heresies 2.34.1, he writes that “[each class of souls] receives a habitation such as it has deserved, even before the judgment,” and in Against Heresies 4.36.6, he affirms that “the most righteous Retributor metes out [punishment] according to their deserts.” While Irenaeus does not explicitly elaborate on the nature of these deserved punishments, his statement in Against Heresies 5.27.2 — that the wicked “experience every kind of punishment” — suggests that the possible scope of these punishments is enormous, but the actual specifics would be tailored to the sinner’s actions, as determined by God’s perfect judgment. This unifies Irenaeus’s systematic insistence that God punishes only passively with his occasional statement that God punishes according to what is deserved while accounting for the language of “[experiencing] every kind of punishment.”
Irenaeus’s understanding of death itself as a form of punishment also reinforces this distinction between God allowing consequences and intending them for themselves. In Against Heresies 3.23.6, he provides an explanation of death’s institution as both a natural and deserved consequence, and a boundary for sin:
Wherefore also He [God] drove him [Adam] out of Paradise, and removed him far from the tree of life, not because He envied him the tree of life, as some venture to assert, but because He pitied him, [and did not desire] that he should continue a sinner for ever, nor that the sin which surrounded him should be immortal, and evil interminable and irremediable. But He set a bound to his [state of] sin, by interposing death, and thus causing sin to cease, putting an end to it by the dissolution of the flesh, which should take place in the earth, so that man, ceasing at length to live to sin, and dying to it, might begin to live to God.
Here, death is not simply a separation but a cessation: the end of animate life. It disables sin by depriving the flesh of animation and the soul of its breath, ultimately bringing both to an end — the flesh when the body dies, but body and soul together at the judgment. The means God chooses to impose this is not typically actively killing humans, but rather withholding any ability to extend their life either indefinitely or forever, a passive imposition. Likewise, Irenaeus’s purpose “so that man … might begin to live to God” clarifies that God imposes death not merely to end sin by ending man (although this is the natural result if man does not repent) but also to motivate man to repent before death ends his ability (see also Ecclesiastes 12:1ff “remember your creator … before” the body slowly loses its capabilities). Death, therefore, is a deterrence to those only tempted by ingratitude; an incapacitation to the unrepentant; complete retribution for shunning God; and restitution to any harmed by one’s sins — and yet it is not an alien imposition, since apart from divine action humans by nature live only a “brief temporal life” and must therefore expect an end.
Finally, it is significant that Irenaeus applies this principle not just to humanity in general but in Against Heresies 3.23.8 also to Adam specifically. Irenaeus holds as dogma3Literally as dogma: he condemns Tatian by name for denying this. that Adam himself was so affected by God’s imposition of death and offer of the gospel that he repented and was saved. This underscores the dual purpose of death: to bring sin to an end while offering man the opportunity and motivation to turn back to God.
Broader Context: An Individual’s Body versus Reincarnation
The immediate context of “the salvation of men,” then, works with Date’s argument. It remains to answer why its chapter (Against Heresies 2.34) begins with a discussion of the intermediate state. In response, the chapter is actually embedded in a broader discussion of the life of humanity, how the soul and body work together in the grand plan of salvation, ordering for each person begetting, life, the death of the body, the intermediate state of the soul, and for all humans gathered together at the end of the age, the final judgment. This is taught in the immediately preceding text, Against Heresies 2.33.5, which says:
God … [confers] its own proper soul on each individual body… And therefore, when the number is completed, [that number] which He had predetermined in His own counsel, all those who have been enrolled for life [eternal] shall rise again, having their own bodies, and having also their own souls, and their own spirits, in which they had pleased God. Those, on the other hand, who are worthy of punishment, shall go away into it, they too having their own souls and their own bodies, in which they stood apart from the grace of God. Both classes shall then cease from any longer begetting and being begotten, from marrying and being given in marriage; so that the number of mankind, corresponding to the fore-ordination of God, being completed, may fully realize the scheme formed by the Father.
So the point of discussing the intermediate state was not that Irenaeus was focused on it; it was elaborating God’s plan to bring each enumerable unique person, as a whole body and soul, from their own life up to the day of judgment where they will be numbered and judged en masse; this being said in order to oppose the doctrines of reincarnationists who think that souls don’t have their own body and therefore there is no judgment for a whole person as body and soul, let alone for all humans together. And although a modern reader’s attention is drawn to the chapter break at which Irenaeus begins discussing the intermediate state, the original text has no known chapter breaks; rather, Irenaeus logically passes from discussing the final judgment to discussing how the soul is preserved for that judgment and in what its final salvation (or punishment) consists, at which time the righteous are given life forever and the wicked are deprived of continuance. And both points work together to explain the difference between reincarnation and Christianity, while keeping the emphasis on the eternal punishment as privation of all good things, not on temporary conditions like those experienced on the day of judgment or in the intermediate state — a question important enough to Irenaeus to put it early in the scope of his entire work.
Theme: the Soul and Spirit
In the above quote of Against Heresies 2.33.5, Irenaeus states that the righteous are raised whole with body, soul, and spirit; while of the wicked he mentions only body and soul. It turns out that this is not an accident but a systematic part of his anthropology and soteriology, and will cast a good deal of light on other passages in his work, and serves as a unifying theme for this paper. Irenaeus dives into detailed discussion of this in Against Heresies 5.12.2 (emphasis added):
For the breath of life, which also rendered man an animated being, is one thing, and the vivifying Spirit another, which also caused him to become spiritual. … breath is indeed given in common to all people upon earth, but that the Spirit is theirs alone who tread down earthly desires. … The Spirit [is] peculiar to God which in the last times He pours forth upon the human race by the adoption of sons; but [he shows] that breath was common throughout the creation, and points it out as something created. Now what has been made is a different thing from him who makes it. The breath, then, is temporal, but the Spirit eternal. The breath, too, increases [in strength] for a short period, and continues for a certain time; after that it takes its departure, leaving its former abode destitute of breath. But when the Spirit pervades the man within and without, inasmuch as it continues there, it never leaves him. “But that is not first which is spiritual,” says the apostle, speaking this as if with reference to us human beings; “but that is first which is animal,4This is a direct rendering of the Latin found here, “animale” according to Harvey 1858; but of course Irenaeus’ original Greek, now lost, would have read psuchikos or “soulish,” as does his 1 Cor 15:46 source. afterwards that which is spiritual,” in accordance with reason.
This distinction explains why Irenaeus describes the wicked as approaching judgment with only body and soul, while the righteous approach with body, soul, and spirit. It also explains Against Heresies 2.34.4 saying that “the soul herself is not life, but partakes in that life bestowed upon her by God … by the participation of life the soul became alive; so that the soul, and the life which it possesses, must be understood as being separate existences.” In his anthropology, the soul depends on an external source for life: the temporal “breath of life” granted to all humans, or the eternal Holy Spirit, given to Christians who walk faithfully in Him and from whom He “never leaves.”
The temporal breath renders natural humans inherently finite in life, and when their breath departs at death, they are deprived of life as a complete person. Irenaeus underscores this in Against Heresies 5.6.1: “[n]either is the soul itself, considered apart by itself, the man; but it is the soul of a man, and part of a man.” While the soul remains animate in the “invisible place allotted” (Against Heresies 2.34.1, 5.31.2) until judgment, it is not the whole person. By contrast, the righteous, walking in the Spirit, are granted life forever. Irenaeus continues in 5.6.1 by interpreting 1 Thessalonians 5:23: “may your whole spirit and soul and body be preserved blameless.” Only those with the Spirit of God remaining in them, preserving faith and righteousness in this life and, having grown in the holiness appropriate to the dwelling of God (Against Heresies 5.6.2), are given life and continuance forever.
Irenaeus’s omission of the spirit in discussions of the judgment of unbelievers is deliberate, highlighting their temporal existence. Deprived of the Spirit, they lose the breath of life without receiving an eternal replacement, leading to their ultimate loss of life and continuance.
An Examination of a Fragment
One more source is worth examining: the challenge is that this is a fragment, not a complete document, and this will present evidence that it has been misinterpreted when being reconstructed.5Credit for this find is due to Megan Bohun who posted it in our Facebook group. I admit I read right over this one on first reading! https://www.facebook.com/groups/rethinkinghell/posts/8920646274719174/ (viewing this post requires membership, apply at facebook.com/groups/rethinkinghell). This is from the Schaff collection of church fathers’ writings, which takes it from the Roberts-Donaldson English Translation’s section titled “Fragments from Lost Writings.” Reconstruction requires help from the Latin/Greek collection by Harvey (in which it is numbered Fragment 12).6https://www.google.com/books/edition/Sancti_Irenaei_Libros_quinque_adversus_h/D2E7AQAAMAAJ?hl=en&gbpv=1&dq=%22nos+igitur+et+corpora+resurgere%22+irenaeus&pg=PA481&printsec=frontcover To avoid a bit of speculative reconstruction7in Schaff, this is shown in a footnote saying “This sentence in the original seems incomplete; we have followed the conjectural restoration of Harvey (that is, the editor of the Greek/Latin collection linked above).” that was added to the Latin by its editor, Harvey, and copied into the English unfortunately without any marking, it will be presented in two parts, removing the entire speculative addition (unfortunately also removing two Latin words of the surviving text which are not translatable apart from speculation). The first part begins, emphasis added:
We therefore have formed the belief that [our] bodies also do rise again. For although they go to corruption, yet they do not perish; for the earth, receiving the remains, preserves them, even like fertile seed mixed with more fertile ground. Again, as a bare grain is sown, and, germinating by the command of God its Creator, rises again, clothed upon and glorious, but not before it has died and suffered decomposition, and become mingled with the earth; so [it is seen from this, that] we have not entertained a vain belief in the resurrection of the body. But although it is dissolved at the appointed time, because of the primeval disobedience, it is placed, as it were, in the crucible of the earth, to be recast again; not then as this corruptible, but pure, and no longer subject to decay: so that to each body its own soul shall be restored; and when it is clothed upon with this, it shall not experience sorrow, but shall rejoice, continuing permanently in a state of purity, having for its companion a just consort, not an insidious one, possessing in every respect […]8Within this ellipsis I place the Latin words from the original document “omnino recipiet,” which have no clear translation without the addition of speculative words. That phrase means “[something] will receive perfectly/exactly [something]”, but while Harvey makes a grammatically smooth reading by inserting “The things pertaining to it, it will receive exactly,” the result of that insertion is actually a contradiction between the two passages which will be discussed in the main text.
This perfectly comports with orthodox teaching on Christian doctrine on the resurrection (whether conditionalist or eternal torment), and fits Irenaeus well. The next part, separated by a grammatically confusing glitch which the collection’s editor attributes to a few missing words, runs:
[…]9See previous note; also, the following verb “shall not receive” would take a singular subject, either implied or part of the omitted text.shall not receive bodies diverse from what they had been, nor delivered from suffering or disease, nor as [rendered] glorious, but as they departed this life, in sins or in righteous actions: and such as they were, such shall they be clothed with upon resuming life; and such as they were in unbelief, such shall they be faithfully judged.
Harvey’s speculative addition removes a grammatical irregularity, but it also introduces express contradictions. The extant text speaks, on the one hand, of each person’s soul raised in his or her glorious body (singular) without sorrow, and, on the other, of a singular mass of people with non-glorious bodies (notice the switch to plural bodies) not delivered from suffering. It makes little sense to propose, as Harvey’s reconstruction implies, that these are the same. A more plausible resolution is that the first part describes the resurrection of each righteous person with glory, honor, and incorruption (as in Romans 2:7). Some intervening text may have been lost, which I propose would have clarified the second part, identifying “the wicked” as a singular group collectively raised with “bodies [not] delivered from suffering and disease, nor glorious”—that is, the same corruptible bodies they died with, expressly unglorified, to be given over to judgment.
Although modern theology (as reflected in the two confessions quoted above) often speaks of a general resurrection of all flesh and all with immortality, there is actually no explicit Biblical support for this notion. Instead, passages such as John 5:28-29 suggest a single moment when all people emerge from their tombs, yet with two distinct resurrections: a “resurrection of life” and a “resurrection of judgment.” Other texts, such as Luke 20:35, emphasize the exclusivity of “being found worthy to attain to the resurrection.” Revelation 20, meanwhile, depicts two resurrections separated by a significant span of time. 1 Corinthians 15 is often quoted to support a universal resurrection to immortality, but it can be read as speaking only of the righteous — those who, per 1 Corinthians 15:2, are saved as opposed to those who do not hold fast to the gospel. It is even plausible that the passage never addresses the unrepentant except by implied exclusion, as the language about “enemies” only directly mentions “powers.” In Irenaeus’s summary of the faith, Demonstration of the Apostolic Teaching 42, he confirms the uniqueness of the resurrection of the righteous:
For such is the state [162] of those who have believed, since in them continually abides the Holy Spirit, who was given by Him in baptism, and is retained by the receiver, if he walks in truth and holiness and righteousness and patient endurance. For this soul has a resurrection in them that believe, the body receiving the soul again, and along with it, by the power of the Holy Spirit, being raised up and entering into the kingdom of God.
This conceptual distinction between two resurrections finds a vivid articulation in the Demonstrations of St. Aphrahat of Syria. In Demonstration 6.18, Aphrahat offers a strikingly similar depiction of the divergent fates awaiting the righteous and the wicked:
Again he said:—Suddenly as the twinkling of an eye, the dead shall rise incorruptible and we shall be changed. And they who shall be changed shall put on the form of that heavenly Adam and shall become spiritual. And those who shall not be changed, shall continue ‘animal’ in the created nature of Adam, namely, of dust; and shall continue in their nature in the earth below. And then the heavenly shall be caught up to heaven and the Spirit that they have put on shall cause them to fly, and they shall inherit the kingdom that was prepared for them from the beginning. And they that are animal shall remain on the earth by the weight of their bodies, and shall turn back to Sheol, and there shall be weeping and gnashing of teeth.
This distinction underscores not only the duality of resurrections but also the qualitative difference between the two outcomes: one marked by spiritual transformation, elevation, and incorruption, the other by earthly descent, decay, and ultimate judgment.
Aphrahat’s vision aligns closely with Irenaeus’s theological framework, reflecting a strand of early Christian eschatological thought traceable to Ignatius and other early fathers. By distinguishing between the transformed, heavenly destiny of the righteous and the untransformed, earthbound fate of the wicked, Aphrahat mirrors biblical themes found in passages like John 5:28–29, Luke 20:35, and Revelation 20. His depiction also directly supports this alternative to the now traditional interpretation of 1 Corinthians 15.
Irenaeus’s surviving works reflect a similarly structured theology that places the Spirit at the center of immortality and incorruption. For Irenaeus, the glorification of the body and the eternal life of the soul depend entirely on the Spirit’s participation — a theme consistently affirmed in Against Heresies. As he writes in Against Heresies 5.12.2, only bodies in which the Spirit participates are made immortal. This concept is elaborated further in Against Heresies 5.9.4, where Irenaeus interprets Paul’s statement that “flesh and blood cannot inherit the kingdom of God” (1 Corinthians 15:50). Against the Gnostic denial of bodily resurrection, Irenaeus affirms the orthodox Christian view that the body partakes in salvation:
If, however, we must speak strictly, [we would say that] the flesh does not inherit, but is inherited … the flesh cannot by itself possess the kingdom of God by inheritance; but it can be taken for an inheritance into the kingdom of God. For a living person inherits the goods of the deceased; and it is one thing to inherit, another to be inherited. […] What, therefore, is it that lives? The Spirit of God, doubtless. What, again, are the possessions of the deceased? The various parts of the man, surely, which rot in the earth. But these are inherited by the Spirit when they are translated into the kingdom of heaven. For this cause, too, did Christ die, that the Gospel covenant … might constitute them heirs of His property, when the Spirit possesses them by inheritance. For he who lives inherits, but the flesh is inherited. In order that we may not lose life by losing that Spirit which possesses us, the apostle, exhorting us to the communion of the Spirit, has said, according to reason, in those words already quoted, “That flesh and blood cannot inherit the kingdom of God.”
Irenaeus’s reasoning ties seamlessly into his broader theology. With his assumptions about the Spirit’s role in granting life, the conditionality of immortality becomes clear. Only through participating in the Spirit can a repentant sinner’s body be inherited into the age to come, transformed into an immortal, spiritual body rather than remaining a merely “soulish body” animated by the soul alone (as Paul describes in 1 Corinthians 15). Believers themselves become the eternal dwelling place and the temple of the Spirit, ensuring the redemption of both body and soul as promised in “our adoption as sons, the redemption of our bodies” (Romans 8:23).
Closing: Irenaeus and the Conditionalist Framework
The preceding analysis demonstrates that Irenaeus’s theology is deeply rooted in the concept of life and immortality as divine gifts reserved for the righteous. His systematic understanding of human nature, resurrection, and final judgment portrays salvation as the active bestowal of incorruptible life, while punishment is framed as a passive deprivation of all good, including continued existence. This aligns seamlessly with the conditionalist perspective, which emphasizes the dependence of the soul on God for life and the ultimate cessation of the wicked in judgment.
Irenaeus consistently distinguishes between body, soul, and Spirit, emphasizing the transformative role of the Spirit in granting eternal life to believers. For Irenaeus, the soul’s survival beyond bodily death is temporary and contingent, with eternal life conferred solely through union with God’s Spirit. In contrast, those who reject this grace are denied “continuance for ever and ever,” ultimately ceasing to exist. These theological insights not only clarify Irenaeus’s position but also illuminate a broader framework in which life, immortality, and judgment are inseparably tied to God’s will and human response. This foundation sets the stage for deeper engagement with contemporary critiques and an exploration of Irenaeus’s theological legacy.
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Note: This article is part of a series. Following on from Part 1 above, Part 2 addresses modern scholars and critics of this view and their interpretations of Irenaeus. Part 3 explores how Irenaeus fits into the theological life of the church in its historical unfolding.
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William Tanksley Jr.