Genesis 26:8-11

8Now it came about, when he had been there a long time, that Abimelech king of the Philistines looked down through a window, and saw them, and behold, Isaac was caressing his wife Rebekah. 9Then Abimelech called Isaac and said, “Behold, she certainly is your wife! So how is it that you said, ‘She is my sister’?” And Isaac said to him, “Because I thought, ‘otherwise I might be killed on account of her.’” 10And 1Abimelech said, “What is this that you have done to us? One of the people might easily have slept with your wife, and you would have brought guilt upon us.” 11So Abimelech commanded all the people, saying, “He who 2touches this man or his wife will certainly be put to death.”