Leviticus 13:57

57 If the spot later reappears on the clothing, the fabric, or the leather article, the mildew is clearly spreading, and the contaminated object must be burned up.

Leviticus 13:57 Meaning and Commentary

Leviticus 13:57

And if it appear still in the garment, either in the warp, or
in the woof, or in anything of skin
After the piece has been rent out, in another part of the garment where before it was not seen: it [is] a spreading [plague];
or leprosy; a flourishing one, as the word signifies, a growing and increasing one: thou shalt burn that wherein the plague [is] with fire;
according to Aben Ezra, only that part in which the plague was; but Jarchi says the whole garment; with whom Ben Gersom seems to agree, who reads the words, thou shall burn it, with that in which the plague is; the whole garment, skin, warp, or woof, along with the part in which the leprosy is.

Leviticus 13:57 In-Context

55 Then the priest must examine the object again. If he finds that the contaminated area has not changed color after being washed, even if it did not spread, the object is defiled. It must be completely burned up, whether the contaminated spot is on the inside or outside.

56 But if the priest examines it and finds that the contaminated area has faded after being washed, he must cut the spot from the clothing, the fabric, or the leather.

57 If the spot later reappears on the clothing, the fabric, or the leather article, the mildew is clearly spreading, and the contaminated object must be burned up.

58 But if the spot disappears from the clothing, the fabric, or the leather article after it has been washed, it must be washed again; then it will be ceremonially clean.

59 “These are the instructions for dealing with mildew that contaminates woolen or linen clothing or fabric or anything made of leather. This is how the priest will determine whether these items are ceremonially clean or unclean.”