Genesis 20:1-7

And Abraham journeyed from thence toward the land of the South, and dwelt between Kadesh and Shur; and he sojourned in Gerar. And Abraham said of Sarah his wife, She is my sister: and Abimelech king of Gerar sent, and took Sarah. But God came to Abimelech in a dream of the night, and said to him, Behold, thou art but a dead man, because of the woman whom thou hast taken; for she is a man’s wife. Now Abimelech had not come near her: and he said, Lord, wilt thou slay even a righteous nation? Said he not himself unto me, She is my sister? and she, even she herself said, He is my brother: in the integrity of my heart and the innocency of my hands have I done this. And God said unto him in the dream, Yea, I know that in the integrity of thy heart thou hast done this, and I also withheld thee from sinning against me: therefore suffered I thee not to touch her. Now therefore restore the man’s wife; for he is a prophet, and he shall pray for thee, and thou shalt live: and if thou restore her not, know thou that thou shalt surely die, thou, and all that are thine.