Numbers 31:20
You shall purify every garment and every article made of leather and all the things made of goats’ hair, and every article made of wood.”
Genesis 35:2
Then Jacob said to his household and to all who were with him, “Get rid of the [idols and images of] foreign gods that are among you, and ceremonially purify yourselves and change [into fresh] clothes;
Exodus 19:10
The Lord also said to Moses, “Go to the people and consecrate them today and tomorrow [that is, prepare them for My sacred purpose], and have them wash their clothes
Numbers 19:14-16
‘This is the law when a man dies in a tent: everyone who comes into the tent and everyone who is in the tent shall be [ceremonially] unclean for seven days.
Numbers 19:22
Furthermore, anything the unclean person touches shall be unclean, and anyone who touches it shall be [ceremonially] unclean until evening.’”