Genesis 17:17-19

Amplified Bible

¹⁷ Then Abraham fell on his face and laughed, and said in his heart, “Shall a child be born to a man who is a hundred years old? And shall Sarah, who is ninety years old, bear a child?” ¹⁸ And Abraham said to God, “Oh, that Ishmael [my firstborn] might live before You!” ¹⁹ But God said, “No, Sarah your wife shall bear you a son indeed, and you shall name him Isaac (laughter); and I will establish My covenant with him for an everlasting covenant and with his descendants after him.