Matthew Poole and continuators on Deuteronomy 23:14

14 For the LORD thy God walketh in the midst of thy camp to deliver thee, and to give up thine enemies before thee: therefore shall thy camp be holy, that he see no unclean thing in thee, and turn away from thee.

Either because the Ark was commonly present with them, or at least some of the Holy Instruments, which were pledges of Gods presence: or, because God had promised to go forth with them, when they ingaged in a just and necessary war.

Marginal references: Heb. naked [illegible: 1+ letters]s of anything.