Leviticus 14:44

then the priest shall go and look . And if the disease has spread in the house , it is a persistent leprous disease in the house ; it is unclean .

the priest is to go and examine it and, if the mold has spread in the house, it is a persistent defiling mold; the house is unclean.

Then the priest shall come and look, and, behold, if the plague be spread in the house, it is a fretting leprosy in the house : it is unclean.