Genesis 20:3-6

3But God came to Abimelech in a dream by night and said to him, “You are about to die because of the woman you have taken, for she is a married woman.”

4Now Abimelech had not approached her, so he said, “Lord, would you destroy a nation even though it is innocent?

5Didn’t he himself say to me, ‘She is my sister’? And she herself said, ‘He is my brother.’ I did this with a clear conscience and clean hands.”

6Then God said to him in the dream, “Yes, I know that you did this with a clear conscience. I have also kept you from sinning against me. Therefore I have not let you touch her.