'Light' in the Bible

"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.

If a man or a woman has a light or whitish spot in the skin of their body,

when the priest examines it and finds that there is a light or dull white patch of skin on the body, it's a harmless skin eruption that has spread on the skin. The person is clean."