Leviticus 13:7, 27
Leviticus 13:7 AMP
“But if the scab spreads farther on the skin after he has shown himself to the priest for his [ceremonial] cleansing, he shall show himself to the priest again.
Leviticus 13:27 AMP
And the priest shall examine him on the seventh day; if it is spreading farther on the skin, then the priest shall pronounce him unclean; it is leprosy.