Leviticus 13:39

the priest shall look , and if the spots on the skin of the body are of a dull white , it is leukoderma that has broken out in the skin ; he is clean .

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.

Then the priest shall look : and, behold, if the bright spots in the skin of their flesh be darkish white; it is a freckled spot that groweth in the skin; he is clean.