15 Then God said to Abraham, “As for Sarai your wife, you shall not call her name Sarai, but 1Sarah shall be her name.

16 “I will bless her, and indeed I will give you aa son by her. Then I will bless her, and she shall be a mother of nations; bkings of peoples will 1come from her.”

17 Then Abraham afell on his face and laughed, and said in his heart, “Will a child be born to a man one hundred years old? And bwill Sarah, who is ninety years old, bear a child?”

18 And Abraham said to God, “Oh that Ishmael might live before You!”

19 But God said, “No, but Sarah your wife will bear you aa son, and you shall call his name 1Isaac; and bI will establish My covenant with him for an everlasting covenant for his 2descendants after him.

20 “As for Ishmael, I have heard you; behold, I will bless him, and awill make him fruitful and will multiply him exceedingly. bHe shall 1become the father of twelve princes, and I will make him a cgreat nation.

21 “But My covenant I will establish with aIsaac, whom bSarah will bear to you at this season next year.”