Genesis 17:6

And I will make you a great nation, And I will bless you, And make your name great; And so you shall be a blessing;

“And I will bless her, and indeed I will give you a son by her. Then I will bless her, and she shall be a mother of nations; kings of peoples will come from her.”

And Yahweh said to her, “Two nations are in your womb; And two peoples will be separated from your body; And one people shall be stronger than the other; And the older shall serve the younger.”

Then he moved away from there and dug another well, and they did not contend over it; so he named it Rehoboth, and he said, “At last Yahweh has made room for us, and we will be fruitful in the land.”

“May God Almighty bless you and make you fruitful and multiply you, that you may become an assembly of peoples.

God also said to him, “I am God Almighty; Be fruitful and multiply; A nation and an assembly of nations shall come from you, And kings shall come forth from your loins.

Now these are the kings who reigned in the land of Edom before any king of the sons of Israel reigned.

And he named the second Ephraim, “For,” he said, “God has made me fruitful in the land of my affliction.”

Now Israel lived in the land of Egypt, in Goshen, and they took possession of property in it and were fruitful and became very numerous.

‘So I will turn toward you and make you fruitful and multiply you, and I will confirm My covenant with you.

by loving Yahweh your God, by listening to His voice, and by holding fast to Him; for this is your life and the length of your days, that you may live in the land which Yahweh swore to your fathers, to Abraham, to Isaac, and to Jacob, to give them.”

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