Leviticus 13:12-18

¹²And if a leprosy break out abroad in the skin, and the leprosy cover all the skin of him that hath the plague from his head even to his foot, wheresoever the priest looketh;

¹³Then the priest shall consider: and, behold, if the leprosy have covered all his flesh, he shall pronounce him clean that hath the plague: it is all turned white: he is clean.

¹⁴But when raw flesh appeareth in him, he shall be unclean.

¹⁵And the priest shall see the raw flesh, and pronounce him to be unclean: for the raw flesh is unclean: it is a leprosy.

¹⁶Or if the raw flesh turn again, and be changed unto white, he shall come unto the priest;

¹⁷And the priest shall see him: and, behold, if the plague be turned into white; then the priest shall pronounce him clean that hath the plague: he is clean.

¹⁸The flesh also, in which, even in the skin thereof, was a boil, and is healed,