Genesis 17:6, 20

I will make you exceedingly fruitful, and I will make nations of you, and kings will come from you.

As for Ishmael, I have heard and listened to you; behold, I will bless him, and will make him fruitful and will greatly multiply him [through his descendants]. He will be the father of twelve princes (chieftains, sheiks), and I will make him a great nation. [Gen 25:12-18]