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"].