Numbers 31:20
And as to every garment, and all that is made of skin, and all work of goats hair , and all things made of wood, ye shall purify yourselves.
Genesis 35:2
Then Jacob said unto his household, and to all that were with him, Put away the foreign gods that are among you, and purify yourselves, and change your garments:
Exodus 19:10
And Jehovah said unto Moses, Go unto the people, and sanctify them to-day and to-morrow, and let them wash their garments,
Numbers 19:14-16
This is the law when a man dieth in a tent: every one that cometh into the tent, and every one that is in the tent, shall be unclean seven days.
Numbers 19:22
And whatsoever the unclean person toucheth shall be unclean; and the soul that toucheth it shall be unclean until even.