Numbers 31:21

21 El`azar the Kohen said to the men of war who went to the battle, This is the statute of the law which the LORD has commanded Moshe:

Numbers 31:21 Meaning and Commentary

Numbers 31:21

And Eleazar the priest said unto the men of war, which went to
the battle
To all the soldiers, officers, and common men:

this is the ordinance of the law, which the Lord commanded Moses;
concerning the purification of unclean persons and things, hereby confirming what Moses had said.

Numbers 31:21 In-Context

19 Encamp you outside of the camp seven days: whoever has killed any person, and whoever has touched any slain, purify yourselves on the third day and on the seventh day, you and your captives.

20 As to every garment, and all that is made of skin, and all work of goats' [hair], and all things made of wood, you shall purify yourselves.

21 El`azar the Kohen said to the men of war who went to the battle, This is the statute of the law which the LORD has commanded Moshe:

22 however the gold, and the silver, the brass, the iron, the tin, and the lead,

23 everything that may abide the fire, you shall make to go through the fire, and it shall be clean; nevertheless it shall be purified with the water for impurity: and all that doesn't withstand the fire you shall make to go through the water.