6 So Isaac settled in Gerar. 7 When the men of the place asked him about his wife, he said, "She is my sister"; for he was afraid to say, "My wife," thinking, "or else the men of the place might kill me for the sake of Rebekah, because she is attractive in appearance."
Matthew Henry's Commentary on Genesis 26:6-7
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.