Leviticus 14:40-45

40then the priest shall order them to tear out the stones with the mark in them and throw them away 1at an unclean place outside the city. 41He shall have the house scraped all around 2inside, and they shall dump the plaster that they scrape off at an unclean place outside the city. 42Then they shall take other stones and replace those stones, and he shall take other plaster and replaster the house.

43“If, however, the mark breaks out again in the house after he has torn out the stones and scraped the house, and after it has been replastered, 44then the priest shall come in and 3make an inspection. If he sees that the mark has indeed spread in the house, it is 4a malignant mark in the house; it is unclean. 45He shall therefore tear down the house, its stones, and its timbers, and all the plaster of the house, and he shall take them outside the city to an 5unclean place.