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 Mosebok 7:37
Detta är lagen om brännoffret, spisoffret, syndoffret, skuldoffret, handfyllningsoffret och tackoffret,

3 Mosebok 14:54
Detta är lagen om allt slags spetälskesjukdom och spetälskeskorv,

3 Mosebok 15:32
Detta är lagen om den som har flytning och om den som har sädesutgjutning, så att han därigenom bliver oren,

Hesekiel 43:12
Detta är lagen om huset: på toppen av berget skall hela dess område runt omkring vara högheligt. Ja, detta är lagen om huset.