'Righteousness of Faith' in the Bible

And he received the sign of circumcision as seal of the righteousness of faith which he had being in uncircumcision, that he might be the father of all them that believe being in uncircumcision, that righteousness might be reckoned to them also;

For the promise, that he should be the heir of the world, was not to Abraham, or to his seed, through the law, but through the righteousness of faith.

What shall we say then? That the nations, who did not follow after righteousness have taken on righteousness, but a righteousness of faith.

But the righteousness of faith speaks thus: Do not say in thine heart, Who shall ascend to the heavens? that is, to bring Christ down;

and be found at death in him, possessing no legal righteousness of my own but the righteousness of faith in Christ, the divine righteousness that rests on faith.