Leviticus 13:54-56

Living Bible

⁵⁴ the priest shall order the suspected article to be washed, then isolated for seven more days. ⁵⁵ If after that time the spot has not changed its color, even though it has not spread, it is leprosy and shall be burned, for the article is infected through and through.^{[a] 56} But if the priest sees that the spot has faded after the washing, then he shall cut it out from the garment or leather goods or whatever it is in.