Genesis 20:1-3

1Abraham journeyed from there to the Negev region and settled between Kadesh and Shur. While he lived as a temporary resident in Gerar,

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

3But God appeared to Abimelech in a dream at night and said to him, “You are as good as dead because of the woman you have taken, for she is someone else’s wife.”