Leviticus 13:7-9

Good News Translation

⁷ But if the sore spreads after the priest has examined you and pronounced you clean, you must appear before the priest again. ⁸ The priest will examine you again, and if it has spread, he shall pronounce you unclean; it is a dreaded skin disease.

⁹ If any of you have a dreaded skin disease, you shall be brought to the priest,