Leviticus 13:7

⁵and the priest shall look on the spot the seventh day; and, behold, if the spot remains before him, if the spot has not spread in the skin, then the priest shall separate him the second time seven days.

⁶And the priest shall look upon him the second time on the seventh day; and, behold, if the spot be dark, and the spot have not spread in the skin, then the priest shall pronounce him clean; for it is a mere mark, and the man shall wash his garments and be clean.

— Leviticus 13:7 —

⁸and the priest shall look upon him; and, behold, if the mark have spread in the skin, then the priest shall pronounce him unclean: it is a leprosy.

⁹And if a man have a plague of leprosy, then he shall come to the priest;