Genesis 22:15-18

15The angel of the Lord called from heaven to Abraham again.

16The angel said, ‘This is what the Lord says: I promise that this is what I will do for you. You did not try to keep your son safe, but you offered him to me. And he was your only son.

17Because you have done this, I will bless you. I will make your descendants become so many that people cannot count them. They will be as many as the stars that are in the sky. They will be as many as the pieces of sand on the shore by the sea. Your descendants will win against their enemies and their enemies' cities.

18I will bless all the nations on the earth through your descendants. I will do this because you have obeyed me.’