Leviticus 13:37-39

New International Version

³⁷ If, however, the sore is unchanged so far as the priest can see, and if black hair has grown in it, the affected person is healed. They are clean, and the priest shall pronounce them clean.

³⁸ “When a man or woman has white spots on the skin, ³⁹ the priest is to examine them, and if the spots are dull white, it is a harmless rash that has broken out on the skin; they are clean.