Genesis 17:17-19

Darby Translation

¹⁷ And Abraham fell on his face and laughed, and said in his heart, Shall [a child] be born to him that is a hundred years old? and shall Sarah, who is ninety years old, bear?

¹⁸ And Abraham said to God, Oh that Ishmael might live before thee!

¹⁹ And God said, Sarah thy wife shall indeed bear thee a son; and thou shalt call his name Isaac; and I will establish my covenant with him, for an everlasting covenant for his seed after him.