Leviticus 14:37-42

37He will examine the mildew area on the walls. If it is green and red in sunken areas that are deeper than the rest of the wall,

38the priest will go out to the door of the house and close up the house for seven days.

39On the seventh day the priest will go back and examine it again. If the mildew in the walls of the house has spread,

40the priest must order the stones that have the mildew to be torn out and thrown outside the city in an unclean place.

41He must have the entire inside of the house scraped. The plaster dust scraped off the walls must be dumped in an unclean place outside the city.

42The stones must be replaced, and the house must be plastered again.