Genesis 18:12-15

And Sarah laughed within herself, saying, After I am waxed old shall I have pleasure, my lord being old also? And Jehovah said unto Abraham, Wherefore did Sarah laugh, saying, Shall I of a surety bear a child, who am old? Is anything too hard for Jehovah? At the set time I will return unto thee, when the season cometh round, and Sarah shall have a son. Then Sarah denied, saying, I laughed not; for she was afraid. And he said, Nay; but thou didst laugh.