24 "If anyone has suffered a burn on the skin and the burned area changes color, becoming either reddish white or shiny white, 25 the priest must examine it. If he finds that the hair in the affected area has turned white and the problem appears to be more than skin-deep, a skin disease has broken out in the burn. The priest must then pronounce the person ceremonially unclean, for it is clearly a serious skin disease. 26 But if the priest finds no white hair on the affected area and the problem appears to be no more than skin-deep and has faded, the priest must quarantine the infected person for seven days. 27 On the seventh day the priest must examine the person again. If the affected area has spread on the skin, the priest must pronounce that person ceremonially unclean, for it is clearly a serious skin disease. 28 But if the affected area has not changed or spread on the skin and has faded, it is simply a swelling from the burn. The priest will then pronounce the person ceremonially clean, for it is only the scar from the burn.
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.