The righteous will rejoice when he sees the vengeance;
he will bathe his feet in the blood of the wicked.
Mankind will say, “Surely there is a reward for the righteous;
surely there is a God who judges on earth.”
from Psalm 58
The Lord spoke to Moses, saying, “Avenge the people of Israel on the Midianites. Afterward you shall be gathered to your people.” So Moses spoke to the people, saying, “Arm men from among you for the war, that they may go against Midian to execute the Lord’s vengeance on Midian.
the officers who were over the thousands of the army, the commanders of thousands and the commanders of hundreds, came near to Moses and said to Moses, “Your servants have counted the men of war who are under our command, and there is not a man missing from us. And we have brought the Lord’s offering, what each man found, articles of gold, armlets and bracelets, signet rings, earrings, and beads, to make atonement for ourselves before the Lord.” And Moses and Eleazar the priest received from them the gold, all crafted articles. And all the gold of the contribution that they presented to the Lord, from the commanders of thousands and the commanders of hundreds, was 16,750 shekels. (The men in the army had each taken plunder for himself.) And Moses and Eleazar the priest received the gold from the commanders of thousands and of hundreds, and brought it into the tent of meeting, as a memorial for the people of Israel before the Lord.
from Numbers 31
Moses gave command concerning them to Eleazar the priest and to Joshua the son of Nun and to the heads of the fathers’ houses of the tribes of the people of Israel. And Moses said to them, “If the people of Gad and the people of Reuben, every man who is armed to battle before the Lord, will pass with you over the Jordan and the land shall be subdued before you, then you shall give them the land of Gilead for a possession.
from Numbers 32
These are the stages of the people of Israel, when they went out of the land of Egypt by their companies under the leadership of Moses and Aaron. Moses wrote down their starting places, stage by stage, by command of the Lord, and these are their stages according to their starting places…
from Numbers 33