For ye are all the children of God. Faith has come to all of you. You are all God's children by faith in Christ. Hence you are under the schoolmaster no longer. He now shows how their faith acted to bring them into Christ.
Faith leads to obedience.
The believer is baptized into Christ, and being found in him has put on Christ. Being in Christ, a member of his body, a part of the Son, the believer becomes a child of God. The baptized is surrounded by Christ and covered by his merits. . . . There is neither Jew nor Greek. In Christ the old, worldly lines of separation are all blotted out.