Genesis 26:7-9

New King James Version

⁷ And the men of the place asked about his wife. And ^(A)he said, “She is my sister”; for ^(B)he was afraid to say, “She is my wife,” because he thought, “lest the men of the place kill me for Rebekah, because she is ^(C)beautiful to behold.” ⁸ Now it came to pass, when he had been there a long time, that Abimelech king of the Philistines looked through a window, and saw, and there was Isaac, ^[a]showing endearment to Rebekah his wife. ⁹ Then Abimelech called Isaac and said, “Quite obviously she is your wife; so how could you say, ‘She is my sister’?”

Isaac said to him, “Because I said, ‘Lest I die on account of her.’ ”