1)
What do we learn from "v'Kavrum Beis Yisrael"?
1.
Malbim: Do not say that they themselves will bury their dead. All of them will die ? none of them will remain to bury others! Only Beis Yisrael will bury them.
2)
Why will they bury them?
1.
Radak: Hashem commanded to bury people [executed and] hung in Yisrael ? "v'Lo Setamei Es Admmasecha" (Devarim 21:23). An unburied Mes is Tum'as ha'Aretz. And so Yehoshua commanded to do to the five kings, and so Yisrael will bury Gog's multitudes "Lema'an Taher Es ha'Aretz."
2.
Malbim: It will be to purify the land from decay, stench and Tum'ah.
3)
What will be seven months?
1.
Radak, Malbim: They will engage in burying them for seven months.
