Here is the law, 1. Concerning flying insects, as flies, wasps, bees, etc.; these they might not eat (Lev 11:20), nor indeed are they fit to be eaten; but there were several sorts of locusts which in those countries were very good meat, and much used: John Baptist lived upon them in the desert, and they are here allowed them, Lev 11:21, Lev 11:22. 2. Concerning the creeping things on the earth; these were all forbidden (Lev 11:29, Lev 11:30, and again, Lev 11:41, Lev 11:42); for it was the curse of the serpent that upon his belly he should go, and therefore between him and man there was an enmity put (Gen 3:15), which was preserved by this law. Dust is the meat of the creeping things, and therefore they are not fit to be man's meat. 3. Concerning the dead carcasses of all these unclean animals. (1.) Every one that touched them was to be unclean until the evening, Lev 11:24-28. This law is often repeated, to possess them with a dread of every thing that was prohibited, though no particular reason for the prohibition did appear, but only the will of the Law-maker. Not that they were to be looked upon as defiling to the conscience, or that it was a sin against God to touch them, unless done in contempt of the law: in many cases, somebody must of necessity touch them, to remove them; but it was a ceremonial uncleanness they contracted, which for the time forbade them to come into the tabernacle, or to eat of any of the holy things, or so much as to converse familiarly with their neighbours. But the uncleanness continued only till the evening, to signify that all ceremonial pollutions were to come to an end by the death of Christ in the evening of the world. And we must learn, by daily renewing our repentance every night for the sins of the day, to cleanse ourselves from the pollution we contract by them, that we may not lie down in our uncleanness. Even unclean animals they might touch while they were alive without contracting any ceremonial uncleanness by it, as horses and dogs, because they were allowed to use them for service; but they might not touch them when they were dead, because they might not eat their flesh; and what must not be eaten must not be touched, Gen 3:3. (2.) Even the vessels, or other things they fell upon, were thereby made unclean until the evening (Lev 11:32), and if they were earthen vessels they must be broken, Lev 11:33. This taught them carefully to avoid every thing that was polluting, even in their common actions. Not only the vessels of the sanctuary, but every pot in Jerusalem and Judah, must be holiness to the Lord, Zac 14:20, Zac 14:21. The laws in these cases are very critical, and the observance of them would be difficult, we should think, if every thing that a dead mouse or rat, for instance, falls upon must be unclean; and if it were an oven, or ranges for pots, they must all be broken down, Lev 11:35. The exceptions also are very nice, Lev 11:36, etc. All this was designed to exercise them to a constant care and exactness in their obedience, and to teach us, who by Christ are delivered from these burdensome observances, not to be less circumspect in the more weighty matters of the law. We ought as industriously to preserve our precious souls from the pollutions of sin, and as speedily to cleanse them when they are polluted, as they were to preserve and cleanse their bodies and household goods from those ceremonial pollutions.

All fowls that creep - Such as the bat, already mentioned, which has claws attached to its leathern wings, and which serve in place of feet to crawl by, the feet and legs not being distinct; but this may also include all the different kinds of insects, with the exceptions in the following verse.

Going upon all four - May signify no more than walking regularly or progressively, foot after foot as quadrupeds do; for it cannot be applied to insects literally, as they have in general six feet, many of them more, some reputed to have a hundred, hence called centipedes; and some a thousand, hence called millipedes; words which often signify no more than that such insects have a great number of feet.

All fowls that creep,.... Or rather "every creeping thing that flies"; for what are designed are not properly fowls, but, as the Jewish writers interpret them, flies, fleas, bees, wasps, hornets, locusts, &c. so the Targum of Jonathan, Jarchi, Ben Gersom, and Maimonides (y):

going upon all four; that is, upon their four feet, when they walk or creep:

these shall be an abomination to you; not used as food, but detested as such.

(y) Maacolot Asurot, c. 2. l. 5.

All fowls that creep, &c.--By "fowls" here are to be understood all creatures with wings and "going upon all fours," not a restriction to animals which have exactly four feet, because many "creeping things" have more than that number. The prohibition is regarded generally as extending to insects, reptiles, and worms.