Leviticus 13:3-10

³And if the priest shall see the plague in the skin of the flesh, and the hair in the plague be turned white, and the appearance of the plague be deeper than the skin of his flesh: it is a plague of leprosy; and so soon as the priest shall see him, he shall pronounce him unclean.

⁴But if it be a white bright spot in the skin of his flesh, and its appearance be not deeper than the skin, and the hair be not turned white: then shall the priest shut up the plague seven days.

⁵And the priest shall see him on the seventh day; and, behold, if the plague have remained unchanged in its appearance, the plague have not spread in the skin: then shall the priest shut him up seven days more.

⁶And the priest shall see him again on the seventh day; and, behold, if the plague be somewhat pale, and the plague have not spread in the skin: then shall the priest pronounce him clean; it is a rising, and he shall wash his clothes, and be clean.

⁷But if the rising should spread abroad in the skin, after he hath been seen by the priest for his cleansing, he shall be seen again by the priest.

⁸And if the priest see that, behold, the rising have spread abroad in the skin, then shall the priest pronounce him unclean: it is leprosy.

⁹If the plague of leprosy happen to be on a man, then shall he be brought unto the priest;

¹⁰And the priest shall see, and, behold, if there be a white swelling in the skin, and the hair in it have turned white, or there be a trace of healthy flesh in the swelling: