Better not tell Paul that!!
Romans 3
31 Do we then overthrow the law by this faith? By no means! On the contrary, we uphold the law.
Or if you prefer Wycliffe
Romans 5
31 Destroy we therefore the law by faith? God forbid [Far be it]; but we stablish the law.
Doesn't matter, all the versions say the same. By your argument, the Ten Commandments are null and void since they were in the Old Testament. The law exists with some changes. Do we sacrifice bulls, cows, and whatnot? No, because Christ was the Final Sacrifice for our sins.
You take passages concerning "law" out of context. If you could not understand such a simple paragraph then I fear you will have trouble understanding the whole.
Romans 3:27 Where is boasting then? It is excluded. By what law? of works? Nay: but by the law of faith.
Romans 3:28 Therefore we conclude that a man is justified by faith without the deeds of the law.
Romans 3:29 Is he the God of the Jews only? is he not also of the Gentiles? Yes, of the Gentiles also:
Romans 3:30 Seeing it is one God, which shall justify the circumcision by faith, and uncircumcision through faith.
Romans 3:31 Do we then make void the law through faith? God forbid: yea, we establish the law.
To stress the point that the old covenant is no longer in governance:
Romans 4:13 For the promise, that he should be the heir of the world, was not to Abraham, or to his seed, through the law, but through the righteousness of faith.