Leviticus 13
44 Ref He is a leper and unclean; the priest is to say that he is most certainly unclean: the disease is in his head.
45 Ref And the leper who has the disease on him is to go about with signs of grief, with his hair loose and his mouth covered, crying, Unclean, unclean.
46 Ref While the disease is on him, he will be unclean. He is unclean: let him keep by himself, living outside the tent-circle.