Rom 3:29-4:3
29 Or is God (the God) of Jews only? is he not (the God) of Gentiles also? Yea, of Gentiles also:
30 if so be that God is one, and he shall justify the circumcision by faith, and the uncircumcision through faith.
31 Do we then make the law of none effect through faith? God forbid: nay, we establish the law.
4 What then shall we say that Abraham, our forefather, hath found according to the flesh?
2 For if Abraham was justified by works, he hath whereof to glory; but not toward God.
3 For what saith the scripture? And Abraham believed God, and it was reckoned unto him for righteousness.