Leviticus 14:33-42

The LORD spoke to Moses and Aaron, saying, “When you come into the land of Canaan, which I give you for a possession, and I put a case of leprous disease in a house in the land of your possession, then he who owns the house shall come and tell the priest, ‘There seems to me to be some case of disease in my house.’ Then the priest shall command that they empty the house before the priest goes to examine the disease, lest all that is in the house be declared unclean. And afterward the priest shall go in to see the house. And he shall examine the disease. And if the disease is in the walls of the house with greenish or reddish spots, and if it appears to be deeper than the surface, then the priest shall go out of the house to the door of the house and shut up the house seven days. And the priest shall come again on the seventh day, and look. If the disease has spread in the walls of the house, then the priest shall command that they take out the stones in which is the disease and throw them into an unclean place outside the city. And he shall have the inside of the house scraped all around, and the plaster that they scrape off they shall pour out in an unclean place outside the city. Then they shall take other stones and put them in the place of those stones, and he shall take other plaster and plaster the house.