Leviticus 13:17 BBE

¹⁵  And when the priest sees the diseased flesh he will say that he is unclean; the diseased flesh is unclean, he is a leper.

¹⁶  Or if the diseased flesh is turned again and changed to white then he is to come to the priest,

¹⁷  And the priest will see him: and if the place is turned white, then the priest will say that he is free from the disease.

¹⁸  And if a bad place has come out on the skin and is well again,

¹⁹  And on the same place there is a white growth of a bright mark, red and white, then let the priest see it;