Leviticus 14:37-42

37Then the priest will go in and examine the mildew on the walls. If he finds greenish or reddish streaks and the contamination appears to go deeper than the wall’s surface,

38the priest will step outside the door and put the house in quarantine for seven days.

39On the seventh day the priest must return for another inspection. If he finds that the mildew on the walls of the house has spread,

40the priest must order that the stones from those areas be removed. The contaminated material will then be taken outside the town to an area designated as ceremonially unclean.

41Next the inside walls of the entire house must be scraped thoroughly and the scrapings dumped in the unclean place outside the town.

42Other stones will be brought in to replace the ones that were removed, and the walls will be replastered.