Even as Abraham "believed God, and it was accounted to him as righteousness."

Know then that they who have faith, these are the sons of Abraham.

Moreover the Scripture, foreseeing that God was to accept the gentiles as righteous by faith, proclaimed beforehand the glad tidings to Abraham, saying, "In thee shall all nations be blessed."

So then they who have faith are blessed with believing Abraham.

to the end that in Christ Jesus the blessing promised to Abraham might come to the gentiles, that we through faith might receive the Spirit which was promised.

But the promises were made to Abraham and "to his offspring." He doth not say, "and to offsprings," as speaking of many, but, as speaking of one, "and to thy offspring," which is Christ.

for if the inheritance cometh from the Law, it ceaseth to be the consequence of the promise; but to Abraham God gave it by promise.

and if ye belong to Christ, then are ye Abrahams offspring, heirs according to the promise.

For it is written, that Abraham had two sons; the one by the bondwoman, the other by the freewoman.