Genesis 18:9-15

9Then they said to him, “Where is Sarah your wife?” So he said, “Here, in the tent.”

10And He said, “I will certainly return to you according to the time of life, and behold, Sarah your wife shall have a son.” (Sarah was listening in the tent door which was behind him.)

11Now Abraham and Sarah were old, well advanced in age; and Sarah had passed the age of childbearing.

12Therefore Sarah laughed within herself, saying, “After I have grown old, shall I have pleasure, my lord being old also?”

13And the Lord said to Abraham, “Why did Sarah laugh, saying, ‘Shall I surely bear a child, since I am old?’

14Is anything too hard for the Lord? At the appointed time I will return to you, according to the time of life, and Sarah shall have a son.”

15But Sarah denied it, saying, “I did not laugh,” for she was afraid. And He said, “No, but you did laugh!”