John Gill Commentary Jeremiah 37:10

"For though ye had smitten the whole army of the Chaldeans that fight against you, and there remained but wounded men among them, yea would they rise up every man in his tent, and burn this city with fire." — Jeremiah 37:10 (ASV)

For though you had smitten the whole army of the Chaldeans that fight against you Even if the whole army of the Chaldeans had been vanquished and slain by the Egyptians, the confederates of the Jews; or were slain by them in a second siege, excepting a few next mentioned:

and there remained [but] wounded men among them and supposing that those who were left, who were not slain, were all wounded men, and so disabled for fighting, as might be thought:

[yet] should they rise up every man in his tent where he was smitten, and lay wounded; or where he was carried to be cured of his wounds; such should rise up like persons from the dead almost, and fight with such strength and spirit, that they should soon take the city, though in such a condition:

and burn this city with fire this being a thing determined by the Lord, and nothing should hinder it; for it matters not what the instruments are; though ever so impotent and disabled, they shall do the work allotted to them.

Therefore all the hopes of the Jews, founded upon the departure of the Chaldean army, were vain ones.