Romans 15:8-12

8For I tell you that Christ has become a servant of the Jews Greek circumcision on behalf of God’s truth, so that the promises made to the patriarchs might be confirmed

9and, moreover, that the Gentiles might glorify God for his mercy. As it is written: “Therefore I will praise you among the Gentiles; I will sing the praises of your name.” 2 Samuel 22:50; Psalm 18:49

10Again, it says, “Rejoice, you Gentiles, with his people.” Deut. 32:43

11And again, “Praise the Lord, all you Gentiles; let all the peoples extol him.” Psalm 117:1

12And again, Isaiah says, “The Root of Jesse will spring up, one who will arise to rule over the nations; in him the Gentiles will hope.” Isaiah 11:10 (see Septuagint)