Romans 15:8-9

8For 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,

9and 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.”