Leviticus 13:57-59

The Voice

⁵⁷ If another spot shows up in the article again—either in the woven or knitted material, or the leather—then the outbreak is spreading, and the article must be burned in the fire. ⁵⁸ But if the spot is gone once the article has been washed—whether it is woven or knitted or leather—you must wash it; then it will be considered clean.