'Rotting' in the Bible

He shall examine the mark on the seventh day; if it has spread in the garment, whether in the warp or the woof, or in the leather, whatever the leather’s purpose, the mark is a malignant leprosy; it is unclean.

So he shall burn the garment, whether the warp or woof, in wool or linen, or on anything made of leather in which the mark occurs; for it is a malignant leprosy; it shall be burned in the fire.

The priest shall examine the article with the mark after it has been washed, and if the mark has not changed color, even though the mark has not spread, it is unclean; you shall burn it in the fire; it is a corroding mildew, whether on the top or on the front of it.

then the priest shall come and look again, and if the mark has spread in the house, it is a malignant leprosy in the house; it is [ceremonially] unclean.