Numbers 19:15
Every container that is opened that does not have a lid cord on it [is] unclean.
Leviticus 11:32
And anything on which {one of them} falls at their death shall become unclean: any object of wood or garment or skin or sackcloth--any object that has performed work--must be placed in water, and it shall be unclean until the evening, and [then] it shall be clean.
Numbers 31:20
You will purify yourselves and every garment and every object of hide and all the work of goats' hair, and every object of wood."
Leviticus 14:36
And the priest shall [issue a] command, and they shall clear out the house before the priest comes to examine the infection, so that all that [is] in the house might not become unclean; and {afterward} the priest shall go to examine the house.
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