Paul outlines God’s plan to reveal His glory to this world, through the Jews and the Gentiles (vs24), as prophesied in Hosea (vs25-26) and Isaiah (vs29). As Gentiles (non-Jews) we have found salvation through faith (vs30). The Jews have not found salvation yet as they pursed works, not faith (vs32). We are made righteous before God, by faith in Jesus. Paul longs for the Jews to be saved through Christ, who is the culmination of the law (vs4).