Genesis 26:9-10

9So Abimelech called Isaac and said, “So in fact she’s your wife! Now how could you say, ‘She’s my sister’?” Isaac said to him, “Because I said, ‘Or else I might die because of her.’”

10Then Abimelech said, “What is it that you’ve done to us? One of the people could have easily slept with your wife and you would’ve brought guilt on us.”