Romans 3:19-21

Obviously, the law applies to those to whom it was given, for its purpose is to keep people from having excuses, and to show that the entire world is guilty before God. For no one can ever be made right with God by doing what the law commands. The law simply shows us how sinful we are. But now God has shown us a way to be made right with him without keeping the requirements of the law, as was promised in the writings of Moses and the prophets long ago.