24 Or when the flesh hath in the skin thereof a burning by fire, and the quick [flesh] of the burning become a bright spot, reddish-white, or white; 25 then the priest shall look upon it; and, behold, if the hair in the bright spot be turned white, and the appearance thereof be deeper than the skin; it is leprosy, it hath broken out in the burning: and the priest shall pronounce him unclean: it is the plague of leprosy. 26 But if the priest look on it, and, behold, there be no white hair in the bright spot, and it be no lower than the skin, but be dim; then the priest shall shut him up seven days: 27 and the priest shall look upon him the seventh day: if it spread abroad in the skin, then the priest shall pronounce him unclean: it is the plague of leprosy. 28 And if the bright spot stay in its place, and be not spread in the skin, but be dim; it is the rising of the burning, and the priest shall pronounce him clean: for it is the scar of the burning.
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.