Genesis 17:6-7

17:6 I will make you extremely fruitful. I will make nations of you, and kings will descend from you. 17:7 I will confirm my covenant as a perpetual covenant between me and you. It will extend to your descendants after you throughout their generations. I will be your God and the God of your descendants after you.

Genesis 17:20

17:20 As for Ishmael, I have heard you. I will indeed bless him, make him fruitful, and give him a multitude of descendants. He will become the father of twelve princes; I will make him into a great nation.