Leviticus 14:36-37 ▼

36 Then the priest shall command that they empty the house, before the priest shall enter to see the plague, that all that is in the house may not be 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 is in the walls of the house, with hollow streaks, greenish, or reddish, which in sight are lower than the wall;