Leviticus 13:54-56

⁵⁴Then the priest shall command that they wash the thing in which the plague is , and he shall shut it up seven days more:

⁵⁵And the priest shall look on the plague after it is washed: and behold, if the plague hath not changed its color, and the plague hath not spread; it is unclean; thou shalt burn it in the fire; it is fret inward, whether it is bare within or without.

⁵⁶And if the priest shall look, and behold, the plague is somewhat dark after the washing of it; then he shall rend it out of the garment, or out of the skin, or out of the warp, or out of the woof: