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.

Genesis 26:4

26:4 I will multiply your descendants so they will be as numerous as the stars in the sky, and I will give them all these lands. All the nations of the earth will pronounce blessings on one another using the name of your descendants.