Romans 3:20-21

3:20 For no one is declared righteous before him by the works of the law, for through the law comes the knowledge of sin. 3:21 But now apart from the law the righteousness of God (which is attested by the law and the prophets) has been disclosed –

Romans 3:27

3:27 Where, then, is boasting? It is excluded! By what principle? Of works? No, but by the principle of faith!