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Isaiah 66:24

The New Testament’s use of Isaiah

7 places · 3 kinds of echo

The source

“They shall go out, and look on the dead bodies of the men who have transgressed against me: for their worm shall not die, neither shall their fire be quenched; and they will be loathsome to all mankind.”

⛓ Read Isaiah 66 forward — the whole chapter and its afterlife →

Where this passage surfaces again, sorted by the strength of the link. Each kind of reuse — formal quotation, deliberate allusion, faint echo, figural pattern — carries its own mark. Follow any reference to read it in place.

Quotation1

A formal citation — high verbal volume, often introduced by a saying-formula.

Mark 9:42-50

The thrice-repeated 'where their worm does not die, and the fire is not quenched' is a near-verbatim quotation of Isaiah's closing vision of the corpses of rebels, an undying worm and unquenchable fire. This is the strongest OT contact in the chapter and supplies the imagery of Gehenna. The repetition underscores the volume and centrality.

High confidence

Allusion2

A deliberate verbal borrowing without a citation formula.

Matt 18:8-9

The 'eternal fire' / 'Gehenna of fire' draws directly on Isaiah's closing vision of the dead whose 'worm shall not die, nor their fire be quenched' — the classic source-image for unquenchable eschatological fire, set in the valley outside Jerusalem.

High confidence
Luke 3:15-18 ?

"Unquenchable fire" (pyr asbeston) echoes Isaiah 66:24, where the fire upon the rebels' corpses is not quenched, the OT locus for everlasting judgment-fire. The precise eschatological-fire vocabulary gives this real Volume within John's threshing-floor oracle.

Medium confidence

Echo4

A fainter, low-volume reuse, carried by recurrence or thematic coherence.

Luke 16:22-26

The rich man's torment, flame, and anguish in Hades draws on Isaiah's closing vision of the dead whose fire is not quenched, the canonical seedbed of post-mortem fiery punishment. Coherence with the unquenched-fire judgment is high and the text was widely available.

Medium confidence
Matt 3:1-12 ?

'Unquenchable fire' for the chaff resonates with Isaiah's final image of the corpses of rebels whose 'fire shall not be quenched' — the canonical source of unending judgment-fire. Faint but specific verbal phrase ('not be quenched'); undergirds Matthew's eschatology of final fire.

Low confidence
Matt 25:31-46 ?

The closing image of the unquenched fire / undying worm for the rebellious provides scriptural background for the 'eternal fire' and 'eternal punishment' of v.41, 46.

Low confidence
Rev 20:7–10 ?

'their worm shall not die, neither shall their fire be quenched' — the unending torment of the condemned ('tormented day and night forever and ever') resonates with the unquenchable fire of Isaiah's final verse.

Low confidence
Elsewhere in Isaiah 66
Isaiah 66:1 4Isaiah 66:2 2Isaiah 66:5 4Isaiah 66:7 2Isaiah 66:13 4Isaiah 66:19 2Isaiah 66:22 5