And Esau was forty years old when he took to wife Judith the daughter of Beeri the Hittite, and Bashemath the daughter of Elon the Hittite:

Wesley's Notes

26:34 He took to wife - Marrying Canaanites, who were strangers to the blessing of Abraham, and subject to the curse of Noah.

Jamieson-Fausset-Brown Bible Commentary

34. Esau . took to wife-If the pious feelings of Abraham recoiled from the idea of Isaac forming a matrimonial connection with a Canaanitish woman [Ge 24:3], that devout patriarch himself would be equally opposed to such a union on the part of his children; and we may easily imagine how much his pious heart was wounded, and the family peace destroyed, when his favorite but wayward son brought no less than two idolatrous wives among them-an additional proof that Esau neither desired the blessing nor dreaded the curse of God. These wives never gained the affections of his parents, and this estrangement was overruled by God for keeping the chosen family aloof from the dangers of heathen influence.

Matthew Henry's Concise Commentary

26:34,35 Esau was foolish in marrying two wives together, and still more in marrying Canaanites, strangers to the blessing of Abraham, and subject to the curse of Noah. It grieved his parents that he married without their advice and consent. It grieved them that he married among those who had no religion. Children have little reason to expect God's blessing who do that which is a grief of mind to good parents.

Matthew Henry's Whole Bible Commentary

Verses 34-35

Here is, 1. Esau's foolish marriage-foolish, some think, in marrying two wives together, for which perhaps he is called a fornicator (Heb. 12:16), or rather in marrying Canaanites, who were strangers to the blessing to Abraham, and subject to the curse of Noah, for which he is called profane; for hereby he intimated that he neither desired the blessing nor dreaded the curse of God. 2. The grief and trouble it created to his tender parents. (1.) It grieved them that he married without asking, or at least without taking, their advice and consent: see whose steps those children tread in who either contemn or contradict their parents in disposing of themselves. (2.) It grieved them that he married the daughters of Hittites, who had no religion among them; for Isaac remembered his father's care concerning him, that he should by no means marry a Canaanite. (3.) It should seem, the wives he married were provoking in their conduct towards Isaac and Rebekah; those children have little reason to expect the blessing of God who do that which is a grief of mind to their good parents.