Leviticus 13:18-23 - Exposition

The method of discriminating between a leprous spot and the reappearing scar of an old ulcer. A reappearing ulcer is to be regarded as leprous it' it have the characteristic marks of leprosy; that is, if it be below the cuticle, and the hairs round it arc turned white. If it has not these marks, it has to be watched for seven days, and if in that time it does not spread, it is to be declared a burning boil , or rather an ulcerous scar, in which case the priest shall pronounce him clean .