genesis 28:6 When Esau saw that Isaac had blessed Jacob, and sent him away to Padanaram, to take him a wife from thence; and that as he blessed him he gave him a charge, saying, Thou shalt not take a wife of the daughters of Canaan; - Free Bible Online

      6-9. when Esau saw that Isaac had blessed Jacob, &c.--Desirous to humor his parents and, if possible, get the last will revoked, he became wise when too late (see Mt 25:10), and hoped by gratifying his parents in one thing to atone for all his former delinquencies. But he only made bad worse, and though he did not marry a "wife of the daughters of Canaan," he married into a family which God had rejected. It showed a partial reformation, but no repentance, for he gave no proofs of abating his vindictive purposes against his brother, nor cherishing that pious spirit that would have gratified his father--he was like Micah (see Jud 17:13).

JFB.