Leviticus 14:34-38

34“When you enter the land of Canaan that I am giving you as a possession, and I place a mildew contamination in a house in the land you possess,

35the owner of the house is to come and tell the priest: Something like mildew contamination has appeared in my house.

36The priest must order them to clear the house before he enters to examine the contamination, so that nothing in the house becomes unclean. Afterward the priest will come to examine the house.

37He will examine it, and if the contamination in the walls of the house consists of green or red indentations that appear to be beneath the surface of the wall,

38the priest is to go outside the house to its doorway and quarantine the house for seven days.