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Isaiah 45:21

The New Testament’s use of Isaiah

3 places · 1 kind of echo

The source

Declare and present it. Yes, let them take counsel together. Who has shown this from ancient time? Who has declared it of old? Haven’t I, Yahweh? There is no other God besides me, a just God and a Savior; There is no one besides me.

⛓ Read Isaiah 45 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.

Echo3

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

Phil 2:9-11

The confession 'Jesus Christ is Lord' draws its monotheistic force from the surrounding oracle ('there is no God else beside me; a just God and a Savior'), the very context of the quoted 45:23. Including the immediate co-text strengthens availability and coherence, supporting the bold identification of Jesus with the one Lord.

Medium confidence
Acts 15:12-21 ?

The closing tag, 'known to him from eternity / who declared these things of old' (vv.17b-18), resembles Isaiah's 'Who has declared this from of old?' — supplying the 'long-known to God' coloring appended to the Amos citation. Contested wording.

Low confidence
Mark 12:28-34 ?

Deutero-Isaiah's repeated 'there is no other God besides me' supplies the same monotheistic formula the scribe uses ('there is none other but he'). Given the recurrence of this oneness language across Deuteronomy and Isaiah, the scribe's confession may draw on the broader prophetic monotheism as well as the Shema.

Low confidence
Elsewhere in Isaiah 45
Isaiah 45:3 2Isaiah 45:9 2Isaiah 45:14 3Isaiah 45:21-22 4Isaiah 45:23 4