Leviticus 11:34-36

New King James Version

³⁴ in such a vessel, any edible food upon which water falls becomes unclean, and any drink that may be drunk from it becomes unclean. ³⁵ And everything on which a part of any such carcass falls shall be unclean; whether it is an oven or cooking stove, it shall be broken down; for they are unclean, and shall be unclean to you. ³⁶ Nevertheless a spring or a cistern, in which there is plenty of water, shall be clean, but whatever touches any such carcass becomes unclean.