Leviticus 13:3-6 ▼

3 The priest is to examine the skin rash on the body. If the hair on the skin rash has turned white and its appearance is deeper than the skin of his body, it's an infectious skin disease. When the priest has examined it, then he is to declare him unclean.

4 |If the light spot in the skin of his body is white but the appearance of the skin rash isn't deeper than the skin of his body and its hair has not become white, then the priest is to isolate the one who is infected for seven days.

5 On the seventh day, the priest is to examine him again. If, in his opinion, the skin rash remained the same and it did not spread, then he is to isolate him for another seven days.

6 |On the next seventh day, the priest is to examine him again. If the skin rash didn't become dull and it didn't spread in the skin, then the priest is to pronounce him clean: it's a scab. He is to wash his clothes and be clean.