17. And Abraham fell upon his face and laughed. And he said in his heart, “Can a child be born to a man a hundred years old, or can Sarah bear a child at ninety?”
18. And Abraham said to God, “Oh that Ishmael might live before you!”
19. And God said, “No, but Sarah your wife shall bear a son for you, and you shall call his name Isaac. And I will establish my covenant with him as an everlasting covenant to his offspring after him.
20. And as for Ishmael, I have heard you. Behold, I will bless him and I will make him fruitful, and I will multiply him exceedingly. He shall father twelve princes, and I will make him a great nation.