Leviticus 14:39

36 And the priest shall command that they empty the house, before the priest goeth in to see the plague, that all that is in the house be not made unclean: and afterward the priest shall go in to see the house:

37 and he shall look on the plague; and, behold, if the plague be in the walls of the house with hollow streaks, greenish or reddish, and the appearance thereof be lower than the wall;

38 then the priest shall go out of the house to the door of the house, and shut up the house seven days.

39 And the priest shall come again the seventh day, and shall look; and, behold, if the plague be spread in the walls of the house;

40 then the priest shall command that they take out the stones in which the plague is, and cast them into an unclean place without the city:

41 and he shall cause the house to be scraped within round about, and they shall pour out the mortar, that they scrape off, without the city into an unclean place:

42 and they shall take other stones, and put them in the place of those stones; and he shall take other mortar, and shall plaster the house.