Genesis 18:9-15

9And they said to him, Where is Sarah thy wife? And he said, Behold, in the tent.

10And he said, I will certainly return to thee at [this] time of the year, and behold, Sarah thy wife shall have a son. And Sarah was listening at the tent-door, which was behind him.

11Now Abraham and Sarah were old [and] advanced in age: it had ceased to be with Sarah after the manner of women.

12And Sarah laughed within herself, saying, After I am become old, shall I have pleasure, and my lord old?

13And Jehovah said to Abraham, Why is this, that Sarah laughs, saying, Shall I indeed bear, when I am become old?

14Is [any] matter too wonderful for Jehovah? At the time appointed I will return to thee, at [this] time of the year, and Sarah shall have a son.

15And Sarah denied, saying, I did not laugh; for she was afraid. And he said, No; but thou didst laugh.