For even before the twins were born, and therefore had not done anything good or bad, Rebecca was told [Gen. 25:23], "The older one [i.e., Esau] will serve the younger one [i.e., Jacob]." This was so that God's purpose of choosing and calling [whomever He wanted to] might prevail, instead of [it depending on] what a person did.

Just as it is written [Mal. 1:2-3], "I [i.e., God] loved Jacob, but hated Esau."

By [having] faith, Isaac pronounced a future blessing on Jacob and Esau. [See Gen. 27:26-40].

and that no one becomes immoral or ungodly, like Esau, who sold his right to the firstborn son's inheritance for a single meal.

For you recall how, even after he [later] wanted to inherit the blessing, Esau was rejected [by his father Isaac. See Gen. 37:35-40]. For he was not able to get his father to change his mind, even though he tearfully begged him [or, "he was not able to change the situation, even though he shed tears over his loss"].