So we are prevented from boasting that God saves us because of our obeying the Mosaic laws. And God will also accept non-Jews on the same basis. And by agreeing that people are declared righteous by their trusting in Christ, we actually confirm, not nullify, the Mosaic laws.

Romans 3:27-31

27 It is not at all [RHQ] because of our obeying the laws of Moses that God erases the record of our sins. So, ◄there is no way that we can boast that God does that because of our obeying those laws./how can we boast about God erasing the record of our sins because of our obeying those laws?► [RHQ] Instead, it is because of our believing/trusting in Christ that God erases the record of our sins. 28 We cannot boast about that, because we conclude that the record of our sins is erased {God erases the record of our sins} because of our trusting in Christ. God does not erase the record of our sins because of our obeying the laws that he gave to Moses, because it is impossible for us to completely obey them. 29 ◄You who are Jews certainly should not think that you are the only ones whom God will accept!/Do you Jews think it is you alone whom God will accept?► [RHQ] You certainly should realize that he will accept non-Jews, too. [RHQ] Of course, he will accept non-Jews also, 30 because, as you firmly believe, there is only one God, who will erase the record of Jews’ [MTY] sins if they trust in what Christ has done, and who will similarly erase the record of non-Jews’ [MTY] sins if they trust in Christ. 31 So, if someone should ask concerning the laws that God gave Moses, “By saying that God erases the record of our sins because of our trusting in Christ, does that mean that those laws now are useless?”, I would reply, “Certainly not. Instead, we truly fulfill the laws that God gave Moses.”