Why did he say "I live in Mitzpah..."?
Malbim: Similarly, do not fear Bavliyim coming as Sheluchim of Melech Bavel, that they will plunder you. I will stand in front of them to save you 1 . You need not fear, nor hide your property from plunderers.
What is "Kayitz"?
Rashi: It is Deveilah (fig cakes).
Radak: It is summer fruits that people dry them, e.g. figs.
Why did he say "put in your Kelim"?
Malbim: You may do so openly [without fear].
What is the meaning of "Asher Tafastem"?
Radak: You seized them to live in them.
Why did he tell them to live in the cities that they took?
Malbim: He did not allow these [Sarei ha'Chayalim] to live in Mitzpah, for initially they rebelled.