The promises were made to Abraham and to his offspring. He did not say, "and to descendents," as if to many, but instead, as if to one, he said, "and to your offspring," who is Christ.
Then the Lord appeared to Abram, and he said to him, "To your offspring, I will give this land." And there he built an altar to the Lord, who had appeared to him.
And he brought him outside, and he said to him, "Take in the heavens, and number the stars, if you can." And he said to him, "So also will your offspring be."
And God said to him: "Let it not seem harsh to you concerning the boy and your woman servant. In all that Sarah has said to you, listen to her voice. For your offspring will be invoked in Isaac.
The scepter from Judah and the leader from his thigh will not be taken away, until he who will be sent arrives, and he will be the expectation of Gentiles.
You are sons of the prophets and of the testament which God has appointed for our fathers, saying to Abraham: 'And by your offspring all the families of the earth shall be blessed.'
Because of this, it is from faith according to grace that the Promise is ensured for all posterity, not only for those who are of the law, but also for those who are of the faith of Abraham, who is the father of us all before God,
These are the Israelites, to whom belongs adoption as sons, and the glory and the testament, and the giving and following of the law, and the promises.
Why, then, was there a law? It was established because of transgressions, until the offspring would arrive, to whom he made the promise, ordained by Angels through the hand of a mediator.
and not holding up the head, with which the whole body, by its underlying joints and ligaments, is joined together and grows with an increase that is of God.
where there is neither Gentile nor Jew, circumcision nor uncircumcision, Barbarian nor Scythian, servant nor free. Instead, Christ is everything, in everyone.