24 Or if in the flesh, in the skin thereof, there is a burning inflammation, and the place of the inflammation become a bright spot white-reddish or white, 25 and the priest look on it, and behold, the hair is turned white in the bright spot, and it looketh deeper than the skin, it is a leprosy which is broken out in the inflammation; and the priest shall pronounce him unclean: it is the sore of leprosy. 26 But if the priest look on it, and behold, there is no white hair in the bright spot, and it is no deeper than the skin, and is pale, the priest shall shut him up seven days. 27 And the priest shall look on him the seventh day, and if it have spread much in the skin, the priest shall pronounce him unclean: it is the sore of leprosy. 28 But if the bright spot have remained in its place, [and] not spread in the skin, and is pale, it is the rising of the inflammation; and the priest shall pronounce him clean; for it is the scar of the inflammation.
Matthew Henry's Commentary on Leviticus 13:24-28
Commentary on Leviticus 13:18-44
(Read Leviticus 13:18-44)
The priest is told what judgment to make, if there were any appearance of a leprosy in old sores; and such is the danger of those who having escaped the pollutions of the world are again entangled therein. Or, in a burn by accident, verse 24. The burning of strife and contention often occasions the rising and breaking out of that corruption, which proves that men are unclean. Human life lies exposed to many grievances. With what troops of diseases are we beset on every side; and thy all entered by sin! If the constitution be healthy, and the body lively and easy, we are bound to glorify God with our bodies. Particular note was taken of the leprosy, if in the head. If the leprosy of sin has seized the head; if the judgment be corrupted, and wicked principles, which support wicked practices, are embraced, it is utter uncleanness, from which few are cleansed. Soundness in the faith keeps leprosy from the head.