Leviticus 13:57

57 But if it reappears in the fabric, weave, or knit, or on any leather article, it is spreading. You must burn the contaminated article.

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 After it has been washed, the priest is to reexamine it, and if the mildewed article has not changed in appearance, it is unclean. Even though the mildew has not spread, you must burn it, whether the rot is on the front or back.

56 If the priest examines it and the mildew has faded after it has been washed, he must cut the contaminated section out of the fabric, leather, weave, or knit.

57 But if it reappears in the fabric, weave, or knit, or on any leather article, it is spreading. You must burn the contaminated article.

58 If the mildew disappears from the fabric, weave, or knit, or any leather article after washing, then it is to be washed again, and it will be clean.

59 This is the law concerning a mildew contamination in wool or linen fabric, weave, or knit, or any leather article, for pronouncing it clean or unclean.”