1-2==
The Campaign. - After the people of Israel had been mustered as the army of Jehovah, and their future relation to the Lord had been firmly established by the order of sacrifice that was given to them immediately afterwards, the Lord commanded Moses to carry out that hostility to the Midianites which had already been commanded in Num 25:16-18. Moses was to revenge (i.e., to execute) the revenge of the children of Israel upon the Midianites, and then to be gathered to his people, i.e., to die, as had already been revealed to him (Num 27:13). “The revenge of the children of Israel” was revenge for the wickedness which the tribes of the Midianites who dwelt on the east of Moab (see at Num 22:4) had practised upon the Israelites, by seducing them to the idolatrous worship of Baal Peor. This revenge is called the “revenge of Jehovah” in Num 31:3, because the seduction had violated the divinity and honour of Jehovah. The daughters of Moab had also taken part in the seduction (Num 25:1-2); but they had done so at the instigation of the Midianites, and not of their own accord, and therefore the Midianites only were to atone for the wickedness.
verses 3-6
To carry out this revenge, Moses had 1000 men of each tribe delivered (ימּסרוּ, see at Num 31:16) from the families (alaphim, see Num 1:16) of the tribes, and equipped for war; and these he sent to the army (into the war) along with Phinehas the son of Eleazar the high priest, who carried the holy vessels, viz., the alarm-trumpets, in his hand. Phinehas was attached to the army, not as the leader of the soldiers, but as the high priest with the holy trumpets (Num 10:9), because the war was a holy war of the congregation against the enemies of themselves and their God. Phinehas had so distinguished himself by the zeal which he had displayed against the idolaters (Num 25:7), that it was impossible to find any other man in all the priesthood to attach to the army, who would equal him in holy zeal, or be equally qualified to inspire the army with zeal for the holy conflict. “The holy vessels” cannot mean the ark of the covenant on account of the plural, which would be inapplicable to it; nor the Urim and Thummim, because Phinehas was not yet high priest, and the expression כּלי would also be unsuitable to these. The allusion can only be to the trumpets mentioned immediately afterwards, the ו before חצצרות being the ו explic., “and in fact.” Phinehas took these in his hand, because the Lord had assigned them
