Hosea 2:23 is the exact prophecy Paul quotes in Romans 9:25 — God promising to call 'Not My People' to be His people.

1 Peter 2:10 echoes the same Hosea passage, applying it to believers who were once not a people but now are God's people — confirming the apostolic interpretation.

Deuteronomy 32:21 prophesies God using a 'not a people' (Gentiles) — directly parallel to Hosea's 'not my people' becoming 'my people'.

Isaiah 19:25 calls Egypt 'my people' — a direct OT parallel to the Hosea quote, showing God's plan to include Gentiles.

Hosea 1:10 contains the same prophecy of calling 'not my people' to 'children of the living God' — the source of Paul's theme.

Isaiah 62:4 reverses the name 'Deserted' to 'Delight', mirroring Hosea's reversal of 'Not my people' to 'My people'.