Genesis 17:16-18
16
And I will bless her, and moreover I will give thee a son of her: yea, I will bless her, and she shall be a mother of nations; kings of peoples shall be of her.
17
Then Abraham fell upon his face, and laughed, and said in his heart, Shall a child be born unto him that is a hundred years old? and shall Sarah, that is ninety years old, bear?
18
And Abraham said unto God, Oh that Ishmael might live before thee!
Bible text: American Standard Version (1901) · Public domain