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.

Even as it is written - Jacob, have I loved, but, Esau, have I hated.

By faith Isaac blessed Jacob and Esau, even concerning things to come.

Be careful that no one fails to gain God's favor, or some poisonous root may come up to trouble and contaminate you all??16 some immoral or godless person like Esau, who sold his very birthright for one single meal.

lest there be any fornication, or profane person, as Esau, who for one mess of meat sold his own birthright.

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"].