Leviticus 13:3-10

³And the priest shall see the plague in the skin of the flesh, and if the hair in the affected spot be turned white, and the appearance of the plague be deeper than the skin of his flesh, it is the plague of leprosy; and the priest shall inspect him and make (pronounce) him to be unclean.

⁴But if a bright spot be in the skin of his flesh, and the appearance be not deeper than the skin, and the hair be not turned white, the priest shall shut up the stricken (man) seven days.

⁵And on the seventh day the priest shall inspect him, and if the plague stands as it did, if the plague hath not increases in the skin, let the priest shut him up a second seven days.

⁶And the priest shall look upon him on the second seventh day; and, behold, if the plague hath become obscure, and the plague hath not spread in the skin, the priest shall make him to be clean; it is a sore, and he shall wash his clothes and be clean.

⁷But if the diseased spot increase again in the skin after having been seen by the priest for his cleansing, he shall be brought a second time to the priest.

⁸And the priest inspecting, and, behold, the soreness hath increased in the skin, the priest shall make him to be unclean; it is the leprosy.

⁹When the plague of leprosy is in a man, let him be brought to the priest.

¹⁰And the priest shall inspect him, and, behold, if the abscess is white in the skin, and it hath turned the hair white, and the sign of quick flesh be in the abscess,