Leviticus 14:37

And he shall examine the disease . And if the disease is in the walls of the house with greenish or reddish spots , and if it appears to be deeper than the surface,

He is to examine the mold on the walls, and if it has greenish or reddish depressions that appear to be deeper than the surface of the wall,

And he shall look on the plague, and, behold, if the plague be in the walls of the house with hollow strakes, greenish or reddish, which in sight are lower than the wall;