Numbers 19:15
Every open container [in the tent], which has no covering tied down on it, is unclean.
Leviticus 11:32
Also anything on which one of them falls after dying becomes unclean, whether it is an article of wood or clothing, or a skin, or a sack—any article that is used—it must be put in water, and will be unclean until the evening; then it becomes clean.
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.”
Leviticus 14:36
The priest shall order that they empty the house before he goes in to examine the mark, so that everything in the house will not have to be declared unclean; afterward he shall go in to see the house.
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