Numbers 31:24
King James Version
“And ye shall wash your clothes on the seventh day, and ye shall be clean, and afterward ye shall come into the camp.”
Context
21And Eleazar the priest said unto the men of war which went to the battle, This is the ordinance of the law which the LORD commanded Moses;
22Only the gold, and the silver, the brass, the iron, the tin, and the lead,
23Every thing that may abide the fire, ye shall make go through the fire, and it shall be clean: nevertheless it shall be purified with the water of separation: and all that abideth not the fire ye shall make go through the water.
24And ye shall wash your clothes on the seventh day, and ye shall be clean, and afterward ye shall come into the camp.
25And the LORD spake unto Moses, saying,
26Take the sum of the prey that was taken, of man and of beast, thou, and Eleazar the priest, and the chief fathers of the congregation:
27And divide the prey into two parts; between them that took the war upon them, who went out to battle, and between all the congregation: