Psalm 117:1
1 Praise the Lord, all you nations. Applaud him, all you foreigners. 2 For his loyal love towers over us, and the Lord’s faithfulness endures. Praise the Lord.
Romans 15:11
9 and thus the Gentiles glorify God for his mercy. As it is written, “Because of this I will confess you among the Gentiles, and I will sing praises to your name.” 10 And again it says: “Rejoice, O Gentiles, with his people.” 11 And again, “Praise the Lord all you Gentiles, and let all the peoples praise him.” 12 And again Isaiah says, “The root of Jesse will come, and the one who rises to rule over the Gentiles, in him will the Gentiles hope.” 13 Now may the God of hope fill you with all joy and peace as you believe in him, so that you may abound in hope by the power of the Holy Spirit.
Notes and References
"... Psalm 98:2 says that God has made his salvation known and revealed his righteousness to the nations.368 Jew and Gentile will be brought together as one people worshipping one God. Other Psalms which anticipate all the nations being included among the people of God are Psalm 100, where all the earth is called on to worship Yahweh, and all the earth is included among the sheep of his pasture. Paul quotes Psalm 117:1: “Praise the Lord, all you Gentiles; let all the peoples extol him” in Romans 15:11 in his final appeal to the Romans to accept one another ..."
Gibb, Ian Paul and the Psalms: Paul's Hermeneutic and Worldview (p. 172) University of Glasgow, 2017