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…

The whole passage refers not to the encampments of the nation while passing from Egypt through the wilderness, but to future warlike expeditions seat out from Canaan.

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…