Appendix B
What “Eternal” Does and Does Not Mean in Scripture
Suppose someone told you that a single word could change everything you believe about hell. You might be skeptical. But that is almost what happens when we look closely at the word our English Bibles translate as “eternal.” Eternal punishment. Eternal fire. Eternal destruction. In passage after passage, the whole case for unending conscious torment rests on one assumption: the original word means “never-ending.” If it does, the traditional doctrine stands firm. If it does not, the ground shifts.
So does it?
This appendix lays out the evidence. I want to do two things here. First, I want to show that the biblical words behind “eternal” do not automatically mean “never-ending.” The Greek aiōn and aiōnios, and the Hebrew olam, are all more flexible than our English Bibles suggest. Their meaning depends on what they are attached to. Second, I want to be honest about where that argument reaches. And where it does not. The goal is not to prove that “eternal” always means “temporary.” It is to show that the word, by itself, cannot bear the weight the traditional reading puts on it.
Several chapters in this book lean on the work we do here. When Chapter 12 examines “eternal destruction,” when Chapter 15 touches the age-language, and when Chapter 23 asks what awaits the worst offenders, each of those chapters links back to this appendix. So the stakes are real. Let us look carefully at the words themselves.
The Greek noun aiōn means, at its core, “an age” or “an epoch”—a stretch of time with a beginning and an end.1 According to Dr. Heleen Keizer, whose doctoral work studied this word in depth, the primary meaning of aiōn is “lifetime.” It carries the idea of “completeness.” The word has more to do with “the entirety of time” than with “endlessness.”2 It marks a full, complete period. How long or short that period turns out to be depends on what the word is attached to.
Think of it this way. The age of a moth’s life is shorter than the age of an oak tree’s life. Both are an aiōn—a complete block of time—but one lasts days and the other lasts centuries. The word describes the whole span. It does not, by itself, tell you that the span never ends.3
The New Testament itself proves this. Aiōn appears in the plural: “the ends of the ages” (1 Cor. 10:11), “the ages to come” (Eph. 2:7). It appears with qualifiers: “this age” and “the one to come” (Eph. 1:21). If the word meant strict endlessness, a plural would make no sense. You cannot have multiple endlessnesses. As Marvin Vincent put it:
“Aiōn is a period of longer or shorter duration, having a beginning and an end, and complete in itself… The word always carries the notion of time, and not of eternity. It always means a period of time. Otherwise it would be impossible to account for the plural, or for such qualifying expressions as this age, or the age to come. It does not mean something endless or everlasting.”
— Marvin Vincent, Word Studies in the New Testament
Let me give a few clear examples. In Romans 12:2, Paul tells us not to be “conformed to this world”—the word for “world” is aiōn. He means this present age, not “this present eternity.” In 2 Timothy 4:10, Demas “loved this present aiōn” and deserted Paul. Demas did not love this present eternity. He loved the passing attractions of the world he lived in.4 And in John 9:32, the healed man declares that “since the beginning of the age” no one has opened the eyes of a man born blind. Not since the beginning of “eternity”—that would be nonsensical. He means since the beginning of recorded time.5
None of this means aiōn can never point to something unending. When attached to God—the only truly eternal being—it can take on that flavor. But on its own, the word simply marks a period, an age. The length depends on what it is attached to.6
If the noun aiōn means “an age,” what does the adjective aiōnios mean? At its most literal: “pertaining to an age,” “age-long,” or “belonging to the age to come.”7 This is the word that most English Bibles translate as “eternal” or “everlasting.” It appears in “eternal punishment” (Matt. 25:46), “eternal destruction” (2 Thess. 1:9), and “eternal life” (John 3:16). So a great deal rides on it.
Plain Words: Aiōnios
The Greek adjective aiōnios (eye-OH-nee-os) is the word behind “eternal” and “everlasting” in English Bibles. It comes from the noun aiōn, meaning “age.” It can mean “unending” when attached to God. But on its own, it means “belonging to an age” or “age-long.” Its force depends on what it describes.
Like its root, aiōnios does not carry a fixed duration. Vincent notes that the term appears roughly 150 times in the Septuagint (the ancient Greek Old Testament, “LXX”), and in four-fifths of those cases it implies limited duration.8 As Vincent wrote: “The adjective aiōnios in like manner carries the idea of time. Neither the noun nor the adjective, in themselves, carry the sense of endless or everlasting. Aiōnios means enduring through or pertaining to a period of time. Both the noun and the adjective are applied to limited periods.”9
The work of Ilaria Ramelli and David Konstan has sharpened this point for contemporary scholarship. In their landmark study Terms for Eternity, they argue that aiōnios draws its meaning from whatever it modifies. A tall dog is not tall in the way a tall tree is tall. In the same way, aiōnios punishment is not necessarily unending in the way the aiōnios God is unending. As they put it: “The meaning of aiōnios is not determinable apart from its context, and it changes in accord with what it modifies.”10
Thomas Talbott presses this point further. In his careful study, he argues that aiōnios never carries any necessary sense of unending duration in the New Testament. In its normal usage there—referring to God or to His gifts and actions—it carries a religious meaning. It concerns quality and divine source. It does not set a timetable.11 William Barclay put the heart of it memorably. Aiōnios, he wrote, “is the word of the eternal order as contrasted with the order of this world.” It is “the word of deity as contrasted with humanity.” It “can be properly applied to no one other than God.”12
The Core Distinction
If the Greek language had only one word for “eternal,” the traditional argument would be stronger. But Greek has two. The word aïdios unambiguously means “everlasting, without beginning or end.” The New Testament uses aïdios only twice (Rom. 1:20; Jude 6). For “eternal” life, “eternal” punishment, and “eternal” fire, the New Testament consistently uses the more flexible aiōnios. If Christ had wanted to convey strict endlessness without any ambiguity, the word aïdios was right there.
This distinction matters enormously. As Burnfield notes, the early Church Fathers would use either aiōnios or aïdios when speaking of future blessedness. But when speaking of future punishment, they used only aiōnios. They chose the more flexible, more ambiguous word.13 Native Greek speakers like Clement of Alexandria and Origen, for whom Greek was a mother tongue, saw no difficulty in reading aiōnios punishment as something less than strictly unending.14
This should give us pause. J. W. Hanson put the matter bluntly. He noted the strangeness of taking our cue on Greek word meanings from a scholar who could barely read the language, while ignoring those who grew up speaking it.15 The “one” in question is Augustine. His influential argument—that aiōnios must always mean “eternal”—shaped Western theology for over a thousand years. We will return to Augustine shortly.
The Hebrew word olam stands behind many of the Old Testament’s “forever” and “everlasting” texts. Like aiōn, it does not inherently mean “never-ending.” Its root sense is “long duration,” “hidden time,” or “an age whose limits are concealed.”16 It marks a span whose end is unknown or far off. But “unknown” is not the same as “nonexistent.”
The evidence is all through the Old Testament. God told Israel to keep the Passover for olam—“forever” (Exod. 12:14). Yet Christians understand that the Passover was fulfilled in Christ and its ritual obligation ended at the cross. The Aaronic priesthood was “everlasting” (olam; Exod. 40:15). But the book of Hebrews teaches that it gave way to the priesthood of Christ. The hills are called “everlasting” (Gen. 49:26). But hills are not literally without end. They are ancient, enduring, old beyond memory. That is olam: a span so long it disappears beyond the horizon—but not necessarily infinite.17
The most striking example is Jonah. From the belly of the great fish, Jonah cries out: “The earth with its bars was around me forever” (Jonah 2:6). The word for “forever” is olam. But Jonah’s “forever” lasted three days and three nights.18 Baker puts it well: that is “a very short eternity.”19 And Talbott draws from it a powerful image: “Do we not have here a perfect analogue for a Christian understanding of hell? Jonah too was ‘cast out’ from the presence of the Lord; and like Jonah… perhaps a myriad of others will one day exclaim: ‘I went down into hell, whose gates closed upon me forever; yet you brought up my life from the Pit, O Lord my God.’”20
Jonah’s “Forever”
When Jonah said the earth barred him in “forever” (olam), his “forever” lasted three days. The word does not lie. It captures how captivity felt—total, inescapable, without a visible end. But God broke through it. The word describes the weight of the experience, not a clock that never stops.
When the Septuagint translators needed to render olam into Greek, they often chose aiōnios. This is not a coincidence. The two words share the same flexibility. Both describe a span whose end is hidden or far off. Both can point toward permanence when describing God. Both resist being pressed into a strict “never-ending” box when describing anything else.
Sooner or later, every discussion of aiōnios lands on Matthew 25:46. And it should. This is the verse that traditional defenders of eternal conscious torment rely on most heavily. Jesus says:
“And these will go away into eternal punishment [kolasin aiōnion], but the righteous into eternal life [zōēn aiōnion].” (Matt. 25:46, ESV)
The traditional argument, which goes back at least to Augustine, runs like this. The same adjective (aiōnios) modifies both “punishment” and “life” in the same sentence. If eternal life is unending, then eternal punishment must be unending too. You cannot have a limited “eternal” on one side and an unlimited “eternal” on the other. The parallelism locks both in place.21
I want to be honest: this is a strong argument. It has persuaded many able scholars. I do not dismiss it. But it is not as airtight as it first appears. Here is why.
The parallelism in Matthew 25:46 need not mean “equal duration.” It can mean “equal quality”—both belong to the age to come, both originate from the eternal God, and both carry the weight and finality of the coming age. As Talbott argues, the emphasis in both cases is on the special kind of reality, not its timetable. In the Gospel of John, Jesus defines eternal life this way: “And this is eternal life, that they may know you, the only true God, and Jesus Christ whom you have sent” (John 17:3). The stress there is clearly on the quality of a relationship with God, not on a stopwatch.22
Both the life and the punishment are aiōnios in the sense that they come from the eternal God. Both belong to the age to come. But that does not require them to be the same length. As Talbott explains, eternal life is a mode of living that has its source in the eternal God. And eternal punishment is punishment that comes from the eternal God. Both belong to the age to come. But nothing requires them to last the same length of time.23
Consider an analogy. We speak of “eternal salvation” (Heb. 5:9) and “eternal judgment” (Heb. 6:2). The same adjective. The same source. But no one thinks the act of saving goes on forever. No one thinks the act of judging never finishes. The results endure. The salvation is complete. The judgment is final. Edward Fudge, himself an annihilationist, made this point well. When aiōnios modifies a result-noun, it describes the result of the action, not the action itself. Eternal salvation is not an eternal act of saving. Eternal judgment is not an eternal act of judging. And eternal punishment is not necessarily an eternal act of punishing.24
But Doesn’t the Parallelism Settle It?
The objection is fair. If aiōnios means “unending” for life, must it not mean “unending” for punishment? Not necessarily. Both belong to the same age—the age to come—and both come from the same eternal God. But “eternal” salvation, “eternal” redemption, and “eternal” judgment all use the same word without implying an unending process. The adjective marks the quality and finality of the thing, not a ticking clock. The Christian hope of unending life with God rests on the resurrection and on God’s unchanging love—not on one Greek adjective.
There is another layer to Matthew 25:46 that the English word “punishment” hides. The Greek word Jesus uses for “punishment” is kolasis (ko-LAH-sis). This is not a neutral word. In classical Greek, kolasis is distinguished from timōria (tee-moh-REE-ah). Aristotle drew the line sharply: kolasis is punishment aimed at the improvement of the one being punished. Timōria is punishment aimed at satisfying the one who inflicts it.25 Plato made the same point: punishment that is rightly administered, he wrote, makes the person who receives it better.26
I do not want to overstate this. Word meanings shift over centuries. By the time of the New Testament, kolasis could be used more broadly. Talbott rightly warns that we should not press word-study arguments too far in either direction. A loving mother can use harsh language. A vengeful man can use the language of correction.27 Still, the choice of kolasis rather than timōria is not nothing. Jesus had the retributive word available. He chose the corrective one.
And if kolasis carries even a trace of its historic meaning—correction, pruning, improvement—then unending correction is deeply strange. Correction that never corrects is not correction at all. Pruning that never finishes has failed. As Talbott puts it, nothing in the context of Matthew 25:46 excludes the possibility that the “eternal punishment” Jesus described is a form of correction whose effects endure forever.28
One more piece of evidence deserves attention. In Jude 7, the author describes Sodom and Gomorrah as “undergoing the punishment of eternal fire” (Greek puros aiōniou). This is the same phrase—eternal fire—that appears in Jesus’ parable of the sheep and the goats (Matt. 25:41). But the fire that consumed Sodom and Gomorrah is not still burning. No one visits the Dead Sea and finds the cities in flames. The fire did its work and stopped.29
What made it “eternal” fire? Not its duration. Its source. It came from the eternal God. It was judgment of a divine kind—belonging to the age to come, foreshadowing the final reckoning. As Baker observes, “the fire that burned these cities does not still burn and will not burn for all eternity, in our traditional sense of the term.”30 The word “eternal” there points to the quality of the fire—its divine origin—not to a clock that never runs down.
“Eternal punishment is… literally that kind of remedial punishment which it befits God to give and which only God can give.”
— William Barclay, A Spiritual Autobiography
I have been making the case that aiōnios does not, by itself, prove unending conscious torment. But I owe you the strongest version of the other side. Here it is.
In many New Testament contexts, aiōnios does carry a sense of permanence. “Eternal life” is genuinely unending. The believer who trusts in Christ will never stop living with God. Christians across every tradition affirm this. And if aiōnios means “unending” when it describes the life of the saved, critics ask, must it not also mean “unending” when it describes the punishment of the lost?31
Moreover, even if aiōnios literally means “pertaining to the age to come,” the age to come is itself without end. Does that not, by extension, make the punishment unending too?32 Robin Parry, who himself defends universal reconciliation, concedes the point fairly: “True, the age to come is everlasting, but that does not necessitate that the punishment of the age to come lasts for the duration of that age, simply that it occurs during that age and is appropriate for that age.”33
I want to say plainly what I am not arguing. I am not arguing that aiōnios always means “temporary.” I am not arguing that “eternal life” will someday end. And I am not arguing that we can simply wave the age-language and make every hard text disappear. What I am arguing is more modest—and, I believe, more defensible:
The Argument in One Sentence
Aiōnios does not, by itself, prove unending conscious torment. Its force depends on context and on the noun it modifies. The case for the traditional view must be made on other grounds—theological, contextual, systematic—not on this word alone.
The unending nature of the believer’s life with God does not rest on one Greek adjective. It rests on the doctrine of the resurrection (John 6:40). It rests on God’s unchanging love (Rom. 8:38–39). And it rests on the repeated promises of Scripture that those in Christ will never be cut off from Him. Those foundations are rock solid. They do not need aiōnios to bear the load.34
But the case for unending punishment? That case leans far more heavily on the one word. And the word will not hold the weight.
It is worth pausing to ask how we got here. How did “eternal punishment” become the settled reading of the Western church? The answer, in large part, is Augustine of Hippo.
Augustine argued forcefully in City of God that the parallelism in Matthew 25:46 locked both aiōnios terms into the same meaning: if life is unending, punishment must be unending too.35 His argument was clear, logical, and hugely influential. It shaped centuries of Western theology. But there is a problem: Augustine admitted that he had “learned almost nothing of Greek” and was “not competent to read and understand” the language.36
This matters. The New Testament was written in Greek, within a Greek-speaking culture. Clement of Alexandria and Origen, for whom Greek was a mother tongue, read aiōnios punishment in Matthew 25 and found no difficulty understanding it as something less than strictly endless. Origen believed the fires of Matthew 25:41 were remedial—that all would eventually be restored through them.37 He read the word in his own language and found it perfectly compatible with hope. If native Greek speakers could read aiōnios this way, we are certainly free to consider their reading alongside Augustine’s.38
This is not a knock on Augustine’s brilliance. He was one of the greatest minds in the history of the church. But on this particular question—the meaning of a Greek word—we should weigh his view against those who grew up speaking the language. And when we do, the “open and shut case” for unending punishment turns out to be neither open nor shut.
Let me draw the threads together and say what this word-study means for the argument of this book.
When opponents cite “eternal destruction” in 2 Thessalonians 1:9 (Chapter 12) as proof of never-ending conscious torment, the age-language alone cannot bear that weight. Aiōnios olethros—“destruction belonging to the age to come”—fits conditional immortality just as naturally: the destruction is final, complete, and belongs to the coming age. It is God’s act. Its results endure. But the act itself need not be unending.
When opponents cite “eternal punishment” in Matthew 25:46 as proof that the lost suffer consciously without end, the same analysis applies. The word aiōnios marks the punishment as belonging to the age to come and as issuing from the eternal God. The word kolasis carries at least a whisper of correction. Together they describe a judgment that is real, serious, and final—but they do not, by themselves, lock in an unending conscious experience.
This result fits conditional immortality. The destruction of the unrepentant is real. It belongs to the age to come. It is aiōnios in that its effects are permanent—there is no coming back from it. But it is destruction, not preservation in torment.
The result also leaves room for universal reconciliation. If the fire of Matthew 25:41 is the purifying fire of God’s own presence (as Appendix C develops), and if kolasis carries its historic meaning of correction, then the punishment may be severe, purifying, and ultimately redemptive. Its corrective effects would last forever because the person who emerges is genuinely changed.
Either way, one thing is clear. The traditional reading has always rested on one assumption: aiōnios can only mean “never-ending.” We have now seen that this assumption is false. The word is more flexible, more nuanced, and more tied to context than the traditional reading allows. And that means one more alleged barrier to grace has been removed.
The judgment is real. The fire is real. The consequences are serious. But the words themselves do not seal the case for unending torment. And where the words leave room, grace has always been known to enter.
↑ 1. BDAG, s.v. “αἰών,” defines the primary sense as “a long period of time, without reference to beginning or end” and “an age, epoch.” Cf. LSJ, s.v. “αἰών.”
↑ 2. Heleen M. Keizer, Life, Time, Entirety: A Study of ΑΙΩΝ in Greek Literature and Philosophy, the Septuagint and Philo (Ph.D. diss., University of Amsterdam, 1999). Burnfield summarizes Keizer’s findings in Patristic Universalism, 2nd ed., ch. 7.
↑ 3. The analogy of the moth and the oak is adapted from Marvin R. Vincent, Word Studies in the New Testament (New York: Scribner’s, 1887), 4:59. Burnfield uses a similar illustration in Patristic Universalism, 2nd ed., ch. 7.
↑ 4. Baker makes the same observation in Razing Hell, ch. 10: “Demas did not love this present eternity! He loved the world’s ways more than God’s ways.”
↑ 5. Baker, Razing Hell, ch. 10. Baker catalogues several such examples to demonstrate that aiōn cannot be consistently rendered as “eternity” in the New Testament.
↑ 6. Burnfield, Patristic Universalism, 2nd ed., ch. 7: “This is not to say aion can never mean ‘eternal,’ but it usually only takes on that signification when referring to God.”
↑ 7. Ilaria L. E. Ramelli and David Konstan, Terms for Eternity: Aiōnios and Aïdios in Classical and Christian Texts (Piscataway, NJ: Gorgias Press, 2013). This is the standard contemporary study of these terms.
↑ 8. Vincent, Word Studies, 4:59.
↑ 9. Vincent, Word Studies, 4:59. Cited in Burnfield, Patristic Universalism, 2nd ed., ch. 7.
↑ 10. Ramelli and Konstan, Terms for Eternity. Cited in Burnfield, Patristic Universalism, 2nd ed., ch. 7.
↑ 11. Thomas Talbott, The Inescapable Love of God, 2nd ed. (Eugene, OR: Cascade Books, 2014), ch. 5. Talbott argues that “on no occasion of its use in the New Testament does aiōnios carry any implication of unending temporal duration.”
↑ 12. William Barclay, New Testament Words (Louisville: Westminster John Knox, 1964), 35. Talbott quotes and develops Barclay’s observation in Inescapable Love, ch. 5.
↑ 13. Burnfield, Patristic Universalism, 2nd ed., ch. 7. Burnfield notes that if aïdios is the unambiguous Greek word for “strictly eternal,” the early Fathers’ choice to use only the more flexible aiōnios for punishment is significant.
↑ 14. Burnfield, Patristic Universalism, 2nd ed., ch. 7. See also Ramelli, The Christian Doctrine of Apokatastasis (Leiden: Brill, 2013), for an extensive catalogue of early Greek-speaking Fathers who read aiōnios punishment as limited.
↑ 15. J. W. Hanson, Universalism: The Prevailing Doctrine of the Christian Church During Its First Five Hundred Years (Boston: Universalist Publishing House, 1899), ch. 11. Cited in Burnfield, Patristic Universalism, 2nd ed., ch. 7.
↑ 16. HALOT, s.v. “עוֹלָם”; BDB, s.v. “עוֹלָם.” The root sense involves hiddenness or concealment of a temporal endpoint. NIDOTTE discusses the range of olam from “long duration” to “perpetuity,” depending on context.
↑ 17. Baker develops these Old Testament examples in Razing Hell, ch. 10. The Passover and Aaronic priesthood examples are also discussed in Burnfield, Patristic Universalism, 2nd ed., ch. 7.
↑ 18. Jonah 2:6. Baker, Razing Hell, ch. 10: “Jonah’s bout in the fish lasted three days and three nights—a very short eternity.”
↑ 19. Baker, Razing Hell, ch. 10.
↑ 20. Talbott, Inescapable Love, ch. 5. Talbott uses the Jonah analogy to suggest a possible pattern for those who undergo God’s age-to-come judgment.
↑ 21. Augustine, City of God, 21.23. This is the argument that shaped the Western tradition’s reading of Matthew 25:46 for over a millennium.
↑ 22. Talbott, Inescapable Love, ch. 5. Talbott writes: “The emphasis here is clearly upon the special quality, not the duration, of a life in proper relationship with God.”
↑ 23. Talbott, Inescapable Love, ch. 5.
↑ 24. Edward William Fudge, The Fire That Consumes, 3rd ed. (Eugene, OR: Cascade Books, 2011), 41. Talbott cites Fudge’s observation approvingly in Inescapable Love, ch. 5, noting that while Fudge (an annihilationist) sees the “result” as completed destruction, a universalist sees it as a completed act of correction.
↑ 25. Aristotle, Rhetoric, 1.10.17. See also TDNT, s.v. “κόλασις.”
↑ 26. Plato, Gorgias, 477a; Protagoras, 324. Plato distinguishes corrective punishment from mere vengeance.
↑ 27. Talbott, Inescapable Love, ch. 5. Talbott urges caution: “Lexical considerations alone will never suffice to establish a theologically adequate theory of punishment.”
↑ 28. Talbott, Inescapable Love, ch. 5.
↑ 29. Jude 7. Burnfield discusses the Sodom illustration in Patristic Universalism, 2nd ed., ch. 7. Baker makes the same observation in Razing Hell, ch. 10.
↑ 30. Baker, Razing Hell, ch. 10.
↑ 31. This is the strongest form of the traditional objection. See Robert A. Peterson, Hell on Trial: The Case for Eternal Punishment (Phillipsburg, NJ: P&R, 1995), for a careful defense.
↑ 32. James Beilby, Postmortem Opportunity: A Biblical and Theological Assessment of Salvation after Death (Downers Grove, IL: IVP Academic, 2021), 303–4. Beilby presses this objection against the universalist reading and notes its force.
↑ 33. Gregory MacDonald (Robin Parry), The Evangelical Universalist, 2nd ed. (Eugene, OR: Cascade Books, 2012). Cited in Beilby, Postmortem Opportunity, 303–4.
↑ 34. Talbott, Inescapable Love, ch. 5: “The idea of an unending resurrection life with God hardly rests upon the translation of the Greek aiōnios; it rests instead upon the doctrine of the resurrection and that of God’s enduring and unchanging love for us.”
↑ 35. Augustine, City of God, 21.23.
↑ 36. Augustine, Confessions, 1.13.20; 1.14.23. Burnfield discusses Augustine’s self-admitted limitations in Greek in Patristic Universalism, 2nd ed., ch. 7.
↑ 37. See Steven Harmon, Every Knee Should Bow: Biblical Rationales for Universal Salvation in Early Christian Thought (Lanham, MD: Rowman & Littlefield, 2003). Burnfield cites Harmon’s summary of Origen’s reading in Patristic Universalism, 2nd ed., ch. 7.
↑ 38. Ramelli and Konstan conclude: “Aiōnios does not mean ‘eternal’… it has a wide range of meanings and its possible renderings are multiple, but it does not mean ‘eternal.’” Terms for Eternity.