Genesis 20:1-4

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?