21. But if the priest examines it and finds that the hairs in it have not turned white and that it is not deeper than the surrounding skin, but is light in colour, the priest shall isolate him for seven days.
22. If the spot spreads, the priest shall pronounce him unclean; he is diseased.
23. But if it remains unchanged and does not spread, it is only the scar left from the boil, and the priest shall pronounce him ritually clean.