Genesis 20:1-5

Now Abraham journeyed from there toward the land of the Negev, and settled between Kadesh and Shur; then he lived for a time in Gerar.

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

But 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 married.”

Now Abimelech had not come near her; and he said, “Lord, will You kill a nation, even though blameless?

Did he himself not say to me, ‘She is my sister’? And she herself said, ‘He is my brother.’ In the integrity of my heart and the innocence of my hands I have done this.”