Gal 3:26

3:26 you are all sons of God. We are adopted “sons” because we are united to the true Son, Jesus Christ. Baptism seals that union with Christ. It is a vital union; Christ lives in us (2:20). It is also a representative union; Christ died and lives for us (Rom. 6:5–11). To be clothed with Christ implies both, in that His righteousness is our covering, and we are a new creation in Christ (Rom. 13:14; Eph. 4:24; Col. 3:10).