Leviticus 14:37-42

37So he shall look at the mark, and if the mark on the walls of the house has greenish or reddish depressions and appears deeper than the 1surface, 38then the priest shall come out of the house, to the 2doorway, and 3quarantine the house for seven days. 39The priest shall return on the seventh day and 4make an inspection. If the mark has indeed spread in the walls of the house, 40then the priest shall order them to tear out the stones with the mark in them and throw them away 5at an unclean place outside the city. 41He shall have the house scraped all around 6inside, 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.