Numbers 31:20-22

Young's Literal Translation

²⁰ and every garment, and every skin vessel, and every work of goats' [hair], and every wooden vessel, ye yourselves cleanse.'

²¹ And Eleazar the priest saith unto the men of the host who go in to battle, `This [is] the statute of the law which Jehovah hath commanded Moses:

²² only, the gold, and the silver, the brass, the iron, the tin, and the lead,