Leviticus 14:40-45

40the priest shall order them to pull out the stones with the spot on them and throw them away 1at an unclean place outside the city. 41And he 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 the discarded stones, and he shall take other plaster and replaster the house.

43“If, however, the spot breaks out again in the house after he has pulled 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 spot has indeed spread in the house, it is 4a malignant spot in the house; it is unclean. 45The owner shall therefore tear down the house, its stones, its timbers, and all the plaster of the house, and he shall take them outside the city to an 5unclean place.