6 Esau learned that Isaac had blessed Jacob and sent him to Paddan Aram to get a wife there, and while blessing him commanded, "Don't marry a Canaanite woman," 7 and that Jacob had obeyed his parents and gone to Paddan Aram. 8 When Esau realized how deeply his father Isaac disliked the Canaanite women, 9 he went to Ishmael and married Mahalath the sister of Nebaioth and daughter of Ishmael, Abraham's son. This was in addition to the wives he already had.
Matthew Henry's Commentary on Genesis 28:6-9
Commentary on Genesis 28:6-9
(Read Genesis 28:6-9)
Good examples impress even the profane and malicious. But Esau thought, by pleasing his parents in one thing, to atone for other wrong doings. Carnal hearts are apt to think themselves as good as they should be, because in some one matter they are not so bad as they have been.