23 But before faith came, we were kept under guard by the law, kept for the faith which would afterward be revealed. 24 Therefore the law was our tutor to bring us to Christ, that we might be justified by faith. 25 But after faith has come, we are no longer under a tutor. 26 For you are all sons of God through faith in Christ Jesus. 27 For as many of you as were baptized into Christ have put on Christ. (Galatians 3:23–27, NKJV)
With these few words, the Holy Spirit summarizes God’s gospel plan for human redemption through Jesus Christ. He said: (1) The law of Moses prepared people for Christ (“before faith came, we were kept under guard by the law…our tutor to bring us to Christ,” 3:23-24); (2) Our means of justification is “by faith” (not by the law of Moses, 3:24); (3) Since “faith has come” (the gospel, 1:23; 3:2), the law of Moses no longer has binding authority over anyone (“we are no longer under a tutor,” 3:25); (4) Justification by faith makes Jews and Gentiles children of God (“you are all sons of God through faith in Christ Jesus,” 3:26); (5) Justification by faith happens at baptism (“for as many of you as were baptized into Christ,” 3:27); and (6) The lost become children of God at baptism, when their relationship with Christ begins (“For as many of you as were baptized into Christ have put on Christ,” 3:27). Without a doubt, the child of God has “put on Christ.” But, one is “baptized into Christ” in order to “put on Christ.” Therefore, without being baptized into Christ one has not yet become a child of God. One has not yet been justified by faith. Baptism is a necessary part of being justified by faith.