Matthew Henry on Genesis 28:6-9
This passage concerning Esau comes in in the midst of Jacob's story, either, 1. To show the influence of a good example. Esau, though the greater man, now begins to think Jacob the better man, and disdains not to take him for his pattern in this particular instance of marrying with a daughter of Abraham. The elder children should give to the younger an example of tractableness and obedience; it is bad if they do not: but it is some alleviation if they take the example of it from them, as Esau here did from Jacob. Or, 2. To show the folly of an after-wit. Esau did well, but he did it when it was too late, He saw that the daughters of Canaan pleased not his father, and he might have seen that…
Read the whole note in the consoleJamieson-Fausset-Brown on Genesis 28:6
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 Mat 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 Jdg 17:13).
Adam Clarke on Genesis 28:5
Bethuel the Syrian - Literally the Aramean, so called, not because he was of the race of Aram the son of Shem, but because he dwelt in that country which had been formerly possessed by the descendants of Aram.
John Gill on Genesis 28:8
And Esau seeing that the daughters of Canaan pleased not Isaac his father. Who he perceived was displeased with the daughters of Canaan, or that they were "evil in his eyes" (i), offensive to him, and disapproved of by him, because of their ill manners: Rebekah is not mentioned, whose displeasure he cared not for.
(i) "malae in oculis", Montanus, Junius & Tremellius, Piscator, Drusius, Schmidt.