John Gills Exposition of the Bible Commentary - Deuteronomy 23:9
When the host goeth forth against thine enemies ,.... An army of soldiers march in order to meet the enemy and fight him: then keep thee from every wicked thing ; the Targum of Jonathan adds, by way of explanation,"from strange worship, uncovering of nakedness, and from shedding innocent blood;'that is, from idolatry, uncleanness of every sort, and murder; and all other wickednesses ought to be abstained from at all times by all persons, but especially by soldiers in such a circumstance,... read more
Matthew Henry's Complete Commentary - Deuteronomy 23:9-14
Israel was now encamped, and this vast army was just entering upon action, which was likely to keep them together for a long time, and therefore it was fit to give them particular directions for the good ordering of their camp. And the charge is in one word to be clean. They must take care to keep their camp pure from moral, ceremonial, and natural pollution. I. From moral pollution (Deut. 23:9): When the host goes forth against thy enemy then look upon thyself as in a special manner engaged... read more