Romans 15:8-12

For I tell you that Christ has become a servant and a minister to the circumcision (Jews) on behalf of God’s truth, to confirm and verify the promises made to the fathers, and for the Gentiles to glorify God for His mercy [to them, since God had no covenant with them]. As it is written and forever remains written, “THEREFORE I PRAISE YOU AMONG THE GENTILES, AND SING PRAISES TO YOUR NAME.” [Ps 18:49] Again it says, “REJOICE and CELEBRATE, O GENTILES, ALONG WITH HIS PEOPLE.” [Deut 32:43] And again, “PRAISE THE LORD ALL YOU GENTILES, AND LET ALL THE PEOPLES PRAISE HIM!” [Ps 117:1] Again Isaiah says, “THERE SHALL BE A ROOT OF JESSE, HE WHO ARISES TO RULE [as King] OVER THE GENTILES, IN HIM SHALL THE GENTILES HOPE.” [Is 11:1, 10; Rev 5:5; 22:16]