Now the promises were made to Abraham and to his offspring. It does not say, “And to offsprings,” referring to many; but, referring to one, “And to your offspring,” which is Christ.
Then the Lord appeared to Abram, and said, “To your descendants I will give this land.” So he built there an altar to the Lord, who had appeared to him.
And he brought him outside and said, “Look toward heaven, and number the stars, if you are able to number them.” Then he said to him, “So shall your descendants be.”
But God said to Abraham, “Be not displeased because of the lad and because of your slave woman; whatever Sarah says to you, do as she tells you, for through Isaac shall your descendants be named.
The scepter shall not depart from Judah, nor the ruler's staff from between his feet, until he comes to whom it belongs; and to him shall be the obedience of the peoples.
You are the sons of the prophets and of the covenant which God gave to your fathers, saying to Abraham, ‘And in your posterity shall all the families of the earth be blessed.’
That is why it depends on faith, in order that the promise may rest on grace and be guaranteed to all his descendants—not only to the adherents of the law but also to those who share the faith of Abraham, for he is the father of us all,
Why then the law? It was added because of transgressions, till the offspring should come to whom the promise had been made; and it was ordained by angels through an intermediary.
And the scripture, foreseeing that God would justify the Gentiles by faith, preached the gospel beforehand to Abraham, saying, “In you shall all the nations be blessed.”
and not holding fast to the Head, from whom the whole body, nourished and knit together through its joints and ligaments, grows with a growth that is from God.