“When someone has a swelling or rash or bright spot on his skin that may be an infectious skin disease, he must be brought to Aaron the priest or to one of his sons who is a priest.
2. When a man shall have in the skin. Since every eruption was not the leprosy, and did not render a man unclean, when God appoints the priests to be the judges, He distinguishes by certain marks a common eruption from the leprosy; and then subjoins the difference between the various kinds of leprosy.
I. Concerning the plague of leprosy we may observe in general, 1. That it was rather an uncleanness than a disease; or, at least, so the law considered it, and therefore employed not the physicians but the priests about it. Christ is said to cleanse lepers, not to cure them.
Commenting on Leviticus 13:1-17
When a man shall have in the skin of his flesh,.... Rules are here given, by which a leprosy might be judged of; which, as a disease, was frequent in Egypt, where the Israelites had dwelt a long time, and from whence they were just come; and is doubtless the reason, as learned men have observed, that several Heathen writers make the cause of their...