The priest must then examine it on the seventh day, and if, ¹  as far as he can see, the infection has stayed the same ²  and has not spread on the skin, ³  then the priest is to quarantine the person for another seven days. ⁴ 

If, as far as the priest can see, the scall has stayed the same ¹  and black hair has sprouted in it, the scall has been healed; the person is clean. So the priest is to pronounce him clean. ²