Leviticus 13:50-59

⁵⁰The priest will examine it, and then put it in a separate place by itself for seven days.

⁵¹On the seventh day he must examine it again. If the mildew has spread, it is clear that it is a type of mildew that destroys clothing, and that clothing must not be worn again.

⁵²The owner must burn completely the item that has the mildew in it, whatever kind of item it is.

⁵³But when the priest examines it, if the mildew has not spread,

⁵⁴he will tell the person who owns it to wash it. Then he must put it in a separate place for another seven days.

⁵⁵Then the priest will examine it again. If the color of the mildew has not changed, even though it has not spread, that item must not be worn again. It does not matter if the mildew is on the inside of the clothing or on the outside; it must be burned.

⁵⁶But when the priest examines it after it has been washed, if the mildew has faded, he must tear out that part that had the mildew in it.

⁵⁷But if the mildew reappears in that item, it is clear that it is spreading, and the whole item must be burned.

⁵⁸But after the clothing is washed and the mildew disappears, it must be washed again, and then it can be worn again.

⁵⁹Those are the regulations concerning mildew on things made of wool or linen or leather, for deciding whether those things can continue to be worn or not.”