Deuteronomy 32:43 is the exact Old Testament source Paul quotes here—calling Gentiles to rejoice with God's people.

Psalm 67:3 prays that all peoples praise God, directly echoing the 'Rejoice, O Gentiles' in Romans.

Psalm 67:4 calls nations to be glad and sing for joy, closely paralleling Paul's call for Gentile rejoicing.

Acts 8:39 shows the Ethiopian eunuch, a Gentile, rejoicing after baptism—a concrete example of the Gentile rejoicing Paul calls for.

Psalm 66:1-4 calls all the earth to shout for joy, mirroring Paul's summons for Gentiles to rejoice with God's people.

Isaiah 42:10-12 calls all nations and coastlands to sing praise—echoing Paul's inclusion of Gentiles in rejoicing with God's people.

Revelation 21:24 depicts nations walking in the light of the New Jerusalem—pointing to the ultimate inclusion of Gentiles in worship.

Psalm 98:3 ties God's faithfulness to Israel with all nations seeing His victory, grounding Gentiles rejoicing.

Isaiah 24:14-15 describes coastlands glorifying God, reflecting the Gentiles rejoicing alongside Israel.

Psalm 68:32 summons kingdoms of the earth to sing praises, reinforcing the theme of Gentile worship with Israel.

Psalm 97:1 calls the earth and coastlands to rejoice at God's reign, aligning with Paul's Gentile inclusion.

Psalm 98:4 commands 'all the earth' to make a joyful noise, paralleling Paul's call for Gentiles to rejoice.

Psalm 138:4 has Gentile kings thanking God, echoing the theme of Gentiles praising with His people.