Genesis 26:9 in the World English Bible
Abimelech called Isaac, and said, “Behold, surely she is your wife. Why did you say, ‘She is my sister’?” Isaac said to him, “Because I said, ‘Lest I die because of her.’”
Context
8 And it came to pass, when he had been there a long time, that Abimelech king of the Philistines looked out at a window, and saw, and, behold, Isaac was sporting with Rebekah his wife.
9 And Abimelech called Isaac, and said, Behold, of a surety she is thy wife: and how saidst thou, She is my sister? And Isaac said unto him, Because I said, Lest I die for her.
10 And Abimelech said, What is this thou hast done unto us? one of the people might lightly have lien with thy wife, and thou shouldest have brought guiltiness upon us.