Romans 3:20-28

For no one will be justified in his sight by the works of the law, because the knowledge of sin comes through the law. But now, apart from the law, the righteousness of God has been revealed, attested by the Law and the Prophets. The righteousness of God is through faith in Jesus Christ to all who believe, since there is no distinction. For all have sinned and fall short of the glory of God; they are justified freely by his grace through the redemption that is in Christ Jesus. God presented him as the mercy seat by his blood, through faith, to demonstrate his righteousness, because in his restraint God passed over the sins previously committed. God presented him to demonstrate his righteousness at the present time, so that he would be just and justify the one who has faith in Jesus. Where, then, is boasting? It is excluded. By what kind of law? By one of works? No, on the contrary, by a law of faith. For we conclude that a person is justified by faith apart from the works of the law.