And it came to pass, when he had been there a long time, that Abimelech king of the Philistines looked out a window, and saw, and, behold, Isaac was caressing Rebekah his wife.
All Commentaries on Genesis 26:8 Go To Genesis 26
George Leo Haydock
AD 1849
His wife; using greater familiarity than a grave and virtuous man, like Isaac, would offer to do with his sister, or with another person's wife.
Sin, or punishment, (Menochius) such as Abimelech's father had formerly experienced. (Haydock)