The Case for Conditional Immortality
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Key passage

Mark 9:42-48

Jesus' warning about Gehenna, where the worm does not die and the fire is not quenched.

The text

Whoever will cause one of these little ones who believe in me to stumble, it would be better for him if he were thrown into the sea with a millstone hung around his neck. If your hand causes you to stumble, cut it off. It is better for you to enter into life maimed, rather than having your two hands to go into Gehenna, into the unquenchable fire, ‘where their worm doesn’t die, and the fire is not quenched.’ If your foot causes you to stumble, cut it off. It is better for you to enter into life lame, rather than having your two feet to be cast into Gehenna, into the fire that will never be quenched— ‘where their worm doesn’t die, and the fire is not quenched.’ If your eye causes you to stumble, cast it out. It is better for you to enter into the Kingdom of God with one eye, rather than having two eyes to be cast into the Gehenna of fire, ‘where their worm doesn’t die, and the fire is not quenched.’
Mark 9:42-48WEB, World English Bible, which is in the public domain

The immediate context

Jesus warns against causing a little one to stumble, then presses the warning home with a series of hard sayings. It is better to enter life maimed than to keep hand, foot or eye and be thrown whole into Gehenna, where the worm does not die and the fire is not quenched.

Where it sits in the canon

Verse 48 is a direct quotation of Isaiah 66:24, and Jesus adds no qualification to it, so the corpses and the unquenched fire of that closing scene come along with the words. Gehenna itself takes its name from the Valley of the Son of Hinnom, which Jeremiah 7:32-33 renames the Valley of Slaughter and fills with unburied dead.

Why it matters

This is the first of the four passages the case identifies as the traditional view's principal texts, and the one place where Jesus himself uses the language of an undying worm and an unquenchable fire.

How the passage is interpreted

The eternal conscious torment reading

Defenders of eternal conscious torment read the doubled negative as deliberate. The worm does not die and the fire is not quenched because there is always something for them to work on. Jesus repeats the line for emphasis at the end of a passage about cutting off a hand or a foot, which makes sense only if what awaits is worse than any loss in this life, and an unending ruin that never completes is worse than a swift end.

The conditionalist reading

Conditionalists answer from the verse Jesus is quoting. In Isaiah 66:24 the worm and the fire are working on dead bodies, and both images describe agents that cannot be stopped short of finishing rather than agents that never finish. Ezekiel 20:47-48, Isaiah 1:31 and Jeremiah 4:4 use unquenchable fire of judgments that plainly did their work. The source document adds that even a worm or fire that persisted would not require a living person to persist under it.

Where the readings agree

  • Verse 48 is a quotation of Isaiah 66:24 and must be read together with it.
  • Gehenna is a real and dreadful outcome that Jesus tells his hearers to avoid at any cost.
  • The worm and the fire are described as unstoppable.
  • Entering life maimed is genuinely better than the alternative Jesus names.

Where the disagreement lies

Whether the undying worm and unquenchable fire imply a person who remains alive under them, or agents that cannot be stopped until nothing of the dead remains.

Notes on the wording

  • Unquenchable describes a fire that cannot be put out, which is not the same claim as a fire that never goes out.
  • Gehenna transliterates the Greek name of the Valley of the Son of Hinnom and is distinct from Hades and from the lake of fire.

Fuller treatment of the Greek and Hebrew words behind these notes is in the glossary and language notes.

Editorial notes

  • The source document notes that the NIV renders the phrase in Mark 9:43 as the fire that never goes out, which asserts more than unquenchable does, so that wording should not be treated on its own as evidence.
  • The site keeps Hades, Sheol, Gehenna and the lake of fire distinct rather than letting one English word carry all four.

Where this passage appears in the case

Related passages

  • Isaiah 66:15-24The scene of corpses, undying worms and unquenched fire that Jesus quotes when he speaks of Gehenna.
  • Daniel 12:2The clearest Old Testament statement of a two-outcome resurrection: everlasting life or everlasting contempt.
  • Matthew 13:24-43The parable of the weeds and its explanation, ending in a fiery furnace with weeping and gnashing of teeth.
  • Revelation 20:10-15The lake of fire, the great white throne, and the naming of the second death.

Sources consulted for this passage

  1. Phil Welch. My case for Conditional Immortality/Annihilation (CI) instead of Eternal Conscious Torment (ECT). Working document, revised through 2026. 2023-03-01 Details
  2. Chris Date. Their Worm Does Not Die: Annihilation and Mark 9:48. Rethinking Hell. 2012-07-17 View original of Their Worm Does Not Die: Annihilation and Mark 9:48 (opens in a new tab) Details
  3. Chris Date. The Fire Is Not Quenched: Annihilation and Mark 9:48, Part 2. Rethinking Hell. 2012-11-20 View original of The Fire Is Not Quenched: Annihilation and Mark 9:48, Part 2 (opens in a new tab) Details
  4. Joseph Dear. The Bible Teaches Annihilationism. 1st edition, PDF version. 2016. approximately 590 pages View original of The Bible Teaches Annihilationism (opens in a new tab) Details

Scripture is quoted from the World English Bible, which is in the public domain. This page was last reviewed .