Romans 15:13

God through our faith fills us with His joy and His peace so that empowered by the Holy Spirit we can rest in His mercy and  in His goodness.

Jesus Christ became a servant to the Jews for two purposes: (1) to confirm God’s promises to Abraham, Isaac, and Jacob; and (2) to demonstrate God’s mercy to the Gentiles so that they might glorify Him. Paul quotes from all three divisions of the OT (the Law, the Prophets, and the Psalms or Writings), and from three great Jewish leaders (Moses, David, and Isaiah), to demonstrate that God’s purpose was always to bless the Gentiles through Israel.

Romans 15:13

13 Now may the God of hope fill you with all joy and peace in believing, that you may abound in hope by the power of the Holy Spirit.