Rashi: Those who promised to help you, they came with you and accompanied you until the border of your land. There they came upon you in war. In this they enticed you and succeeded.

Radak: People of your Bris, whom you trusted, they exiled you and sent you to the border of your enemies who plunder you.

Malbim: Anshei Brischa accompanied you until the border, that you will leave your border to fight the enemy. They came with you to help you (Anshei Bris must do so), but they did not help you. They left you at the border to fight by yourself.

Malbim: They removed fear from your heart so you would be distracted in war, and via this they overcame you. In this they enticed you and succeeded.

Rashi: [They succeeded] to entice you to leave, and returned in back of you.

Rashi: It is an illness.

Malbim: It is a bandage.

Rashi: Even your food, your brother Yakov made it an illness for you. He gave to you bread and porridge, and through it (the food), you disgrace the Bechorah.

Radak: People who eat your bread, that you trusted them, they helped your enemies Tachtecha (covertly). They looked like friends; they feign to lament and cry over your exile.

Malbim: People who eat your bread, they feigned to want to cure your wound, and they promised to stand in place of you to save your land from afflicters.

Radak: Esav did not understand what Anshei Briso are doing, for on that day you will lose your Chachmah and strength. Often, a verse switches from second person to third person.

Malbim: There is no understanding in this (it did not help at all).