Genesis 17:15–21

¹⁵Then 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.”

¹⁷Then 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?”

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

¹⁹But 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.”