6 So Isaac stayed in Gerar. 7 When the men who lived there asked Isaac about his wife, Rebekah, he said, "She is my sister." He was afraid to say, "She is my wife." He thought, "They will kill me to get her, because she is so beautiful." 8 But some time later, Abimelech, king of the Philistines, looked out his window and saw Isaac caressing Rebekah. 9 Immediately, Abimelech called for Isaac and exclaimed, "She is obviously your wife! Why did you say, 'She is my sister'?" "Because I was afraid someone would kill me to get her from me," Isaac replied. 10 "How could you do this to us?" Abimelech exclaimed. "One of my people might easily have taken your wife and slept with her, and you would have made us guilty of great sin." 11 Then Abimelech issued a public proclamation: "Anyone who touches this man or his wife will be put to death!"
Matthew Henry's Commentary on Genesis 26:6-11
Commentary on Genesis 26:6-11
(Read Genesis 26:6-11)
There is nothing in Isaac's denial of his wife to be imitated, nor even excused. The temptation of Isaac is the same as that which overcame his father, and that in two instances. This rendered his conduct the greater sin. The falls of those who are gone before us are so many rocks on which others have split; and the recording of them is like placing buoys to save future mariners. This Abimelech was not the same that lived in Abraham's days, but both acted rightly. The sins of professors shame them before those that are not themselves religious.