Gal 2:16, Knowing that a man is not justified by the works of the law, but by the faith(Jesus's faith)of Jesus Christ, even we have believed(man's faith)in Jesus Christ, that we might be justified by the faith(Jesus's faith)of Christ, and not by the works of the law; for by the works of the law shall no flesh be justified. Some of the later translated versions of the bible have changed the word "of" to "in" in Gal 2:16 which would make it to say that man's faith justifies him, instead of Jesus's faith. Rom 4:2-3, For if Abraham were justified by works, he hath whereof to glory(for being obedient to God), for God counted it unto him for righteousness, but not for eternal justification. We all can be justified for our works and receive a blessing, but not for eternal justification, onle Jesus's faith can do that