Genesis 20:3-5

3But 1God came to Abimelech in a dream by night, and said to him, Behold, thou art [but] a dead man, because of the woman that thou hast taken; for she is a man's wife.

4But Abimelech had not come near her. And he said, Lord, wilt thou also kill a righteous nation?

5Did he not say to me, She is my sister? and she, even she said, He is my brother. In the integrity of my heart and in the innocency of my hands have I done this.