Genesis 18:13

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

Genesis 18:13 Meaning and Commentary

Genesis 18:13

And the Lord said unto Abraham
This discovers who the person was that had been conversing with Abraham, that he was a divine Person, as appears by his name "Jehovah", as well as by his knowledge of Sarah's behaviour; he did not turn himself to her, that it might be more manifest that it was not upon the sight of her he judged she laughed, but from his own omniscience; and he chose rather to speak to her husband than to her, appearing as a stranger, and that he might reprove her: wherefore did Sarah laugh, saying, shall I of a surety bear a child,
which am old?
suggesting there was no reason for it, and signifying his displeasure and indignation at it.

Genesis 18:13 In-Context

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

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

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

14 Is 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."

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