That there be no immoral or godless person like Esau, who sold his own birthright for a single meal.
This scripture reminds me of the Prodigal son, who wanted his inheritance before his father died. He ended up spending it on lustful living, and when he was poor and destitute, he came back home begging for nothing more than a place to sleep and food.
Ephesians 5: 11-17 tells us to put on the full Armor of God which is:
Gird your loins with truth, put on the breastplate of righteousness, shod your feet with the preparation of the Gospel of peace, take up the shield of faith with which you will be able to extinguish all the flaming missiles of the evil one, take the helmet of salvation, and the sword of the Spirit, which is the word of God.
It is by this, that the worldly pleasures will not tease and temp us to fall back into there trap.