⁵⁰ The priest is to examine the affected area^(A) and isolate the article for seven days. ⁵¹ On the seventh day he is to examine it,^(B) and if the mold has spread in the fabric, the woven or knitted material, or the leather, whatever its use, it is a persistent defiling mold; the article is unclean.^{(C) 52} He must burn the fabric, the woven or knitted material of wool or linen, or any leather article that has been spoiled; because the defiling mold is persistent, the article must be burned.^(D)