Leviticus 13:4-8 - A Bright Spot On The Skin
4 If the sore is white and does not appear to be deeper than the skin around it and the hairs have not turned white, the priest will isolate you for seven days. 5 The priest will examine you again on the seventh day. If in his opinion the sore looks the same and has not spread, he will isolate you for another seven days. 6 The priest will examine you again on the seventh day. If the sore has faded and has not spread, he will pronounce you ritually clean. It is only a sore. You will wash your clothes and be ritually clean. 7 If the sore spreads after the priest has examined you and pronounced you clean, you must return to the priest again. 8 The priest will examine you again. If it has spread, he will pronounce you unclean. It is a dreaded skin disease.