20 And you must purify every covering, and every vessel made of skin, and every hair cloth, and every utensil of wood.
Numbers 31:20 Cross References - Thomson
Genesis 35:2
2 Thereupon Jacob said to his family and to all who were with him, Put away the strange gods which are with you and purify yourselves and change your garments;
Exodus 19:10
10 When Moses told the Lord the words of the people the Lord said to Moses, Go down and testify to the people and purify them to-day and to-morrow and let them wash their garments
Numbers 19:14-16
14 This also is the law, that if any man die in a house, every one who goeth into the house, and all the things in the house, shall be unclean seven days.
15 And every open vessel which hath not a cover fastened on it, is unclean.
16 And every one who, in the open field, toucheth one slain, or dead, or a human bone, or a grave, shall be unclean seven days.
Numbers 19:22
22 and whatever the unclean person toucheth shall be unclean; and the person who toucheth it shall be unclean until evening.