What does Leviticus 13:30 mean?

the priest will look at it. If it seems deeper than the skin and the hair in it is thin and yellow, the priest will say it’s a skin disease on the head or chin. That person is unclean. Leviticus 13:30 - Modern Text Bible

(If the sore is deep and the hair is thin and yellow, it’s a sign of disease and the person is unclean.)