With the holy instruments, and... — Or, with the holy instruments, even, &c. It does not appear whether the ark did or did not accompany the expedition. It has been inferred from Numbers 14:44 that the reference may be to the ark, but it does not appear probable that the ark would be so described. Moreover, Phinehas was not the high priest, and therefore would not have the ephod with the breastplate, which was worn at this time by-Eleazar. The reference may be only to the silver trumpets (see Numbers 10:9), or it may include other sacred instruments. This was emphatically a holy war; and we may learn, from the command given to the Israelites to take with them “the holy instruments,” that they who would engage in the war against sin and Satan must “take to them the whole armour of God” (Ephesians 6:13).
Related Commentaries of Numbers 31:6
Numbers 31:6
6 And Moses sent them to the war, a thousand of every tribe, them and Phinehas the son of Eleazar the priest, to the war, with the holy instruments, and the trumpets to blow in his hand.