1. As a test of obedience, and to teach the Israelites habits of self-denial, and the government of their appetites.

2. To keep them distinct from other nations, and consequently from their idolatrous usages, by throwing hindrances in the way of their social intercourse; for these distinctions were applicable both to persons and things. The Canaanites not only ate the animals prohibited by Moses, which we usually eat, but others also, among which dogs were one. Besides, many of those declared unclean were sacred among the heathen, and sacrificed to their gods.

3. Because those prohibited were innutritive and unwholesome; as the swine, the flesh of which being strong and difficult to digest, affords a very gross aliment, and produces, especially in hot climates, cutaneous, scrophulous, and scorbutic disorders, as the itch, leprosy, etc.

3.Mosebog 7:37
Det er Loven om Brændofferet, Afgrødeofferet, Syndofferet, Skyldofferet, Indsættelsesofferet og Takofferet,

3.Mosebog 14:54
Det er Loven om al Slags Spedalskhed og Skurv,

3.Mosebog 15:32
Det er Loven om Mænd, der lider af Flaad, og fra hvem der gaar Sæd, saa de bliver urene derved,

Ezekiel 43:12
Dette er Loven om Templet: Paa Bjergets Tinde skal alt dets Omraade til alle Sider være højhelligt; se, det er Loven om Templet.