Leviticus 13:27-37

²⁷And on the seventh day he shall view him: if the leprosy be grown farther in the skin, he shall declare him unclean.

²⁸But if the whiteness stay in its place, and be not very clear, it is the sore of a burning, and therefore he shall be cleansed, because it is only the scar of a burning.

²⁹If the leprosy break out in the head or the beard of a man or woman, the Priest shall see them,

³⁰And if the place be lower than the other flesh, and the hair yellow, and thinner than usual: he shall declare them unclean, because it is the leprosy of the head and the beard;

³¹But if he perceive the place of the spot is equal with the flesh that is near it, and the hair black: he shall shut him up seven days,

³²And on the seventh day he shall look upon it. If the spot be not grown, and the hair keep its colour, and the place of the blemish be even with the other flesh:

³³The man shall be shaven all but the place of the spot, and he shall be shut up other seven days:

³⁴If on the seventh day the evil seem to have stayed in its place, and not lower than the other flesh, he shall cleanse him, and his clothes being washed he shall be clean.

³⁵But if after his cleansing the spot spread again in the skin,

³⁶He shall seek no more whether the hair be turned yellow, because he is evidently unclean.

³⁷But if the spot be stayed, and the hair be black, let him know that the man is healed, and let him confidently pronounce him clean.