Numbers 31:21-31

ISV(i) 21 Eleazar the priest told the soldiers who had gone to battle, “This is the ordinance of the law that the LORD commanded Moses 22 concerning anything containing gold, silver, brass, iron, tin, lead, 23 or anything else that can survive a refiner’s fire: You are to pass it through fire, after which it will be clean. Then it is to be purified with the water of impurity. Everything that cannot survive a refiner’s fire is to be washed in water. 24 Wash your clothes on the seventh day, after which you will be clean. Then you may enter the camp.”
25 Offerings from War BootyThen the LORD told Moses, 26 “Take an inventory of the booty that was taken in the battle, both of humans and of animals. Then you, Eleazar the priest, and the leaders of the fathers of the community 27 are to divide the booty between the warriors who went to war and the rest of the community.
28 “After this, you are to exact a tribute for the LORD from the soldiers who went to war, consisting of the tribute earned by one person out of every 500, whether from people, cattle, donkeys, or flocks. 29 You are to take half their share and give it to Eleazar the priest as a raised offering to the LORD. 30 Then take half the share of the Israelis, one drawn out of every 50 people, cattle, donkeys, flocks, and from every animal, then give to the descendants of Levi who maintain the service of the LORD’s tent.”
31 So Moses and Eleazar the priest did what the LORD had commanded Moses.