Romans 3:19-20, 27-28

Now we know that what things soever the law saith, it speaketh to them that are under the law; that every mouth may be stopped, and all the world may be brought under the judgment of God: because by the works of the law shall no flesh be justified in his sight; for through the law cometh the knowledge of sin.

Where then is the glorying? It is excluded. By what manner of law? of works? Nay: but by a law of faith. We reckon therefore that a man is justified by faith apart from the works of the law.