Genesis 17:18-20 New International Version - UK (NIVUK)
18 And Abraham said to God, ‘If only Ishmael might live under your blessing!’
19 Then God said, ‘Yes, but your wife Sarah will bear you a son, and you will call him Isaac.[a] I will establish my covenant with him as an everlasting covenant for his descendants after him. 20 And as for Ishmael, I have heard you: I will surely bless him; I will make him fruitful and will greatly increase his numbers. He will be the father of twelve rulers, and I will make him into a great nation.