since indeed it is one [and the same] God who will justify the circumcised by faith [which began with Abraham] and the uncircumcised through [their newly acquired] faith.

What shall we say then that Abraham our father, as pertaining to the flesh, hath found?

For if Abraham were justified by works, he hath whereof to glory; but not before God.

For what saith the scripture? Abraham believed God, and it was counted unto him for righteousness.

Cometh this blessedness then upon the circumcision only, or upon the uncircumcision also? for we say that faith was reckoned to Abraham for righteousness.

And the father of circumcision to them who are not of the circumcision only, but who also walk in the steps of that faith of our father Abraham, which he had being yet uncircumcised.

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.

Therefore it is of faith, that it might be by grace; to the end the promise might be sure to all the seed; not to that only which is of the law, but to that also which is of the faith of Abraham; who is the father of us all,

As it is written, "I have made you the father of many nations." Abraham acted in faith when he stood in the presence of God, who gives life to the dead and calls into existence things that don't yet exist.

Abraham, building on hope in spite of hopeless circumstances, had faith, and so he actually became the father of many nations, just as it had been told him, "So numberless shall your descendants be."

Abraham's faith did not become weak [even though] he was about one hundred years old and considered his body almost dead and Sarah's womb incapable of conceiving a child.

So indeed it was credited to Abraham as righteousness.

Now it was credited to him was not written for Abraham alone,

Neither, because they are the seed of Abraham, are they all children: but, In Isaac shall thy seed be called.

That is, it is not Abraham's natural descendants who are God's children, but those who are made children by the promise are counted his true descendants.

I say then, Hath God cast away his people? God forbid. For I also am an Israelite, of the seed of Abraham, of the tribe of Benjamin.

Now if the first-fruits of the dough Abraham and the Patriarchs are holy, so also is the whole mass their descendants. And if the root of a tree Abraham is holy, so also are the branches his descendants.