And if a leprosy breaks out greatly on the skin, and the leprosy covers all the skin of the one who has the plague from his head even to his foot, to all that appears to the eyes of the priest, then the priest shall look. And behold, if the leprosy has covered all his flesh, he shall pronounce the plague-spot clean. It has all turned white. He is clean.” (Leviticus 13:12-13) This doesn’t seem to make sense. So, it requires some study. Leprosy doesn’t sprout all over the bod