Let me put it another way. The law was our guardian until Christ came; it protected us until we could be made right with God through faith. And now that the way of faith has come, we no longer need the law as our guardian.
For you are all children of God through faith in Christ Jesus. And all who have been united with Christ in baptism have put on Christ, like putting on new clothes. There is no longer Jew or Gentile, slave or free, male and female. For you are all one in Christ Jesus. And now that you belong to Christ, you are the true children of Abraham. You are his heirs, and God’s promise to Abraham belongs to you.
In Roman society, a youth coming of age laid aside the robe of childhood and put on a new toga. This represented his move into adult citizenship with full rights and responsibilities. Paul combined this cultural understanding with the concept of baptism. By becoming Christians and being baptized, the Galatian believers were becoming spiritually grown up and ready to take on the privileges and responsibilities of the more mature. Paul was saying that they had laid aside the old clothes of the law, and were putting on Jesus’ new robe of righteousness and his character.
The picture of the law as a guardian is similar to a tutor giving a young child supervision. We no longer need that kind of supervision. The law teaches us the need for salvation; God’s grace gives us that salvation. The Old Testament still applies today. In it, God reveals his nature, his will for humanity, his moral laws, and his guidelines for living. But we cannot be saved by keeping that law; we must trust Jesus.
Some Jewish males greeted each new day by praying, “Lord, I thank you that I am not a Gentile, a slave, or a woman.” According to Galatians 3:28, faith in Christ transcends these differences and unifies all believers in Christ. When we allow our differences to separate us from our fellow believers, we are disregarding clear biblical teaching. Make a point to seek out and appreciate people who are not just like you and your friends. You may find that you have a lot in common with them.