Leviticus 14:57

57 to determine when something is clean or unclean. These are the regulations for defiling skin diseases and defiling molds.

Read Leviticus 14:57 Using Other Translations

To teach when it is unclean, and when it is clean: this is the law of leprosy.
to show when it is unclean and when it is clean. This is the law for leprous disease.
This procedure will determine whether a person or object is ceremonially clean or unclean. “These are the instructions regarding skin diseases and mildew.”