Numbers 31:19
King James Version
“And do ye abide without the camp seven days: whosoever hath killed any person, and whosoever hath touched any slain, purify yourselves and your captives on the third day, and on the seventh day.”
Context
16Behold, these caused the children of Israel, through the counsel of Balaam, to commit trespass against the LORD in the matter of Peor, and there was a plague among the congregation of the LORD.
17Now therefore kill every male among the little ones, and kill every woman that hath known man by lying with him.
18But all the women children, that have not known a man by lying with him, keep alive for yourselves.
19And do ye abide without the camp seven days: whosoever hath killed any person, and whosoever hath touched any slain, purify yourselves and your captives on the third day, and on the seventh day.
20And purify all raiment, and all that is made of skins, and all work of goats’ and all things made of wood.
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,