Romans 9:29 to Isaiah 1:9

NT Text: Romans 9:29

OT Source(s):

• Isaiah 1:9 ("Unless the Lord of hosts had left us offspring, we would have been like Sodom")

Source: Treasury of Scripture Knowledge

Reference Type: Direct Quotation

Connection Method(s): Analogy + Longitudinal Theme

Significance: Paul quotes Isaiah 1:9 in Romans 9:29 to conclude his argument about the remnant, following his citation of Isaiah 10:22-23 in verses 27-28. Isaiah's original context is the opening indictment of Judah, where the prophet acknowledges that only divine mercy prevented total annihilation like Sodom and Gomorrah. Paul introduces this with "as Isaiah foretold" (proeirēken), emphasizing prophetic anticipation. The key term "offspring" or "seed" (sperma) connects to the broader seed-promise trajectory: God's preservation of a remnant ensures the continuation of the line through which Messiah would come. The Sodom-Gomorrah comparison underscores the severity of judgment that the remnant was spared — total, irreversible destruction. Paul's argument moves from the limitation of the remnant (Isa 10:22-23, only a remnant will be saved) to divine grace in preserving even that remnant (Isa 1:9), establishing that Israel's salvation is entirely a matter of sovereign mercy.

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Hermeneutical Notes

NT Use Pattern: Assimilated — Second half of the Isaiah 10:22-23 + Isaiah 1:9 composite at Romans 9:27-29. The remnant motif from Isaiah 1 fuses with the remnant-judgment from Isaiah 10.

Anchor Text: Isa 1:9 — Remnant of Sodom