Paul also teaches that there is to be no dividing wall in the church between Jews and Gentiles (Eph. 2:11-22; 3:36; cf. Acts 10; 11:1-18). Gentiles do not need to become Jews in order to be saved (Gal. 3:29). They do not need circumcision. Rather, they are Abraham’s children by faith, the Israel of God (Gal. 6:16), part of one body in Christ (Rom. 12:13). There is one family.

John M. Frame, Systematic Theology, 1019.