Romans 4
2 Ref For if Abraham was justified by works, he hath whereof to glory; but not toward God.
3 Ref For what saith the scripture? And Abraham believed God, and it was reckoned unto him for righteousness.
4 Ref Now to him that worketh, the reward is not reckoned as of grace, but as of debt.
5 Ref But to him that worketh not, but believeth on him that justifieth the ungodly, his faith is reckoned for righteousness.