Leviticus 13:56-58

Amplified Bible

⁵⁶ “If the priest looks and the mark has faded after it is washed, he shall tear it out of the garment, or the leather, or out of the warp or woof. ⁵⁷ If it still appears in the garment, either in the warp or in the woof, or on anything made of leather, it is an outbreak; you shall burn the marked part in the fire. ⁵⁸ The garment, whether the warp or the woof, or anything made of leather from which the mildew has departed after washing, shall then be washed a second time and it will be [ceremonially] clean.”