Leviticus 13:55-57

New Catholic Bible

⁵⁵ The priest shall examine the thing with the spot after it has been washed. If the color of the spot has not changed, even if it has not spread, it is unclean. It shall be burned in the fire whether the bare spot is on the inside or outside. ⁵⁶ If the priest examines the garment and the spot has faded after the washing, then he shall tear it out of the garment, whether it be made of skin or woven or knitted. ⁵⁷ But if it reappears on the garment, whether in the weave or the knit or on anything made of skin, it is spreading. Whatever is infected shall be burned in the fire.