Leviticus 13:20-23

²⁰and when the priest seeth the place of the leprosy lower than the other flesh, and the hairs turned into whiteness, the priest shall defoul him, that is, deem him foul; for the wound or the plague of leprosy is bred or sprung in the botch.

²¹That if the hair is of the former colour, and the sign of the wound is some-deal dark, and is not lower than the flesh beside, the priest shall enclose the man seven days;

²²and soothly, if his sore waxeth, the priest shall deem the man to be a leper;

²³forsooth if it standeth in his place, it is a sign of a botch, and the man shall be clean.