Genesis 20:1-3

Young's Literal Translation

20 And Abraham journeyeth from thence toward the land of the south, and dwelleth between Kadesh and Shur, and sojourneth in Gerar;

² and Abraham saith concerning Sarah his wife, `She is my sister;' and Abimelech king of Gerar sendeth and taketh Sarah.

³ And God cometh in unto Abimelech in a dream of the night, and saith to him, `Lo, thou [art] a dead man, because of the woman whom thou hast taken -- and she married to a husband.'