Paul said in (Gal. 3:1, 13, 16-17, 19, 24) (v.1) O FOOLISH Ga-la’-tians, who hath bewitched you, that ye should not obey the truth, before whose eyes Jesus Christ hath been evidently set forth, crucified among you? (v.13) Christ hath redeemed us from the curse of the law, being made a curse for us: for it is written, CURSED IS EVERYONE THAT HANGETH ON A TREE: What law is this talking about? Let the bible speak for itself. (v.16) Now to Abraham and his seed were the promises made. He saith not, and to seeds, as of many; but as of One, AND TO THY SEED, which is Christ. (v.17) And this I say, that the covenant, that was confirmed before of God in Christ, the law, which was four hundred and thirty years after, cannot disannul, that it should make the promise of none effect. Now pay attention, the law that is being spoken of here came four hundred and thirty years after this covenant. But God’s holy commandments have been around forever even before man was created. Remember that Satan was kicked out of heaven because iniquity (sin) was found in him. And what is sin? The transgression of the law (commandments). (v.19) Wherefore then serveth the law? A question is being asked here. Then why should we serve this law? It was added because of transgression, till the seed should come to whom the promise was made; the law that we are talking about here was added because of sin. But we now know that sin is the transgression of the law. How do you add a law if sin is the transgression of the law? Because there are two sets of laws, you have God’s holy commandments which abided forever, and you had the animal sacrificial law which was added because of sin, but it was only good until the seed should come to whom the promise was made, and that seed was Jesus. (v.24) Wherefore the law was our schoolmaster to bring us unto Christ, that we might be justified by faith. This animal sacrificial law was only a schoolmaster. And this schoolmaster taught you that when you sinned in ignorance blood had to be shed (an animal sacrificed). But Christ being the ultimate sacrifice shed his precious blood once and for all, and by doing this putting an end to the animal sacrificial law.
If you are following all of the writing of Paul, then you will find out that you are following Jesus, and if you are truly following Jesus then you are following the law of God.
Jesus said in (Mat.7:21) “Not every one that saith unto me, Lord, Lord, shall enter into the kingdom of heaven; but he that doeth the will of my Father which is in heaven”. For students to succeed in school, students learn to follow their teachers' instructions, and learn their lessons carefully. But few apply this method when they are dealing with the word of God. Is Jesus your Lord? Then why don’t you do the things he says. (Luke 6:46) “And why call ye me, Lord, Lord, and do not the things which I say”? He told you plainly: in (Ex 20:8-10) (v.8) Remember the Sabbath day, to keep it holy. (v.9) Six days shalt thou labour, and do all thy work: (v.10) “But the seventh day is the Sabbath of the LORD thy God”.