Genesis 17:18

17:18 Abraham said to God, “O that Ishmael might live before 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.

Genesis 17:25-26

17:25 his son Ishmael was thirteen years old when he was circumcised. 17:26 Abraham and his son Ishmael were circumcised on the very same day.