Genesis 20:1

1Abraham traveled from there toward the land of the South, and lived between Kadesh and Shur. He lived as a foreigner in Gerar.

2Abraham said about Sarah his wife, “She is my sister.” Abimelech king of Gerar sent, and took Sarah.

3But God came to Abimelech in a dream of the night, and said to him, “Behold, you are a dead man, because of the woman whom you have taken; for she is a man’s wife.”