Genesis 17:15-17

Young's Literal Translation

¹⁵ And God saith unto Abraham, `Sarai thy wife -- thou dost not call her name Sarai, for Sarah [is] her name;

¹⁶ and I have blessed her, and have also given to thee a son from her; and I have blessed her, and she hath become nations -- kings of peoples are from her.'

¹⁷ And Abraham falleth upon his face, and laugheth, and saith in his heart, `To the son of an hundred years is one born? or doth Sarah -- daughter of ninety years -- bear?'