Leviticus 13:21-23

New Revised Standard Version, Anglicised

²¹ But if the priest examines it and the hair on it is not white, nor is it deeper than the skin but has abated, the priest shall confine him for seven days. ²² If it spreads in the skin, the priest shall pronounce him unclean; it is diseased. ²³ But if the spot remains in one place and does not spread, it is the scar of the boil; the priest shall pronounce him clean.