Leviticus 11:29-30
20 All fowls that creep, going upon all four, shall be an abomination unto you. 21 Yet these may ye eat of every flying creeping thing that goeth upon all four, which have legs above their feet, to leap withal upon the earth; 22 Even these of them ye may eat; the locust after his kind, and the bald locust after his kind, and the beetle after his kind, and the grasshopper after his kind. 23 But all other flying creeping things, which have four feet, shall be an abomination unto you. 24 And for these ye shall be unclean: whosoever toucheth the carcase of them shall be unclean until the even. 25 And whosoever beareth ought of the carcase of them shall wash his clothes, and be unclean until the even. 26 The carcases of every beast which divideth the hoof, and is not clovenfooted, nor cheweth the cud, are unclean unto you: every one that toucheth them shall be unclean. 27 And whatsoever goeth upon his paws, among all manner of beasts that go on all four, those are unclean unto you: whoso toucheth their carcase shall be unclean until the even. 28 And he that beareth the carcase of them shall wash his clothes, and be unclean until the even: they are unclean unto you. 29 These also shall be unclean unto you among the creeping things that creep upon the earth; the weasel, and the mouse, and the tortoise after his kind, 30 And the ferret, and the chameleon, and the lizard, and the snail, and the mole. 31 These are unclean to you among all that creep: whosoever doth touch them, when they be dead, shall be unclean until the even. 32 And upon whatsoever any of them, when they are dead, doth fall, it shall be unclean; whether it be any vessel of wood, or raiment, or skin, or sack, whatsoever vessel it be, wherein any work is done, it must be put into water, and it shall be unclean until the even; so it shall be cleansed. 33 And every earthen vessel, whereinto any of them falleth, whatsoever is in it shall be unclean; and ye shall break it. 34 Of all meat which may be eaten, that on which such water cometh shall be unclean: and all drink that may be drunk in every such vessel shall be unclean. 35 And every thing whereupon any part of their carcase falleth shall be unclean; whether it be oven, or ranges for pots, they shall be broken down: for they are unclean, and shall be unclean unto you. 36 Nevertheless a fountain or pit, wherein there is plenty of water, shall be clean: but that which toucheth their carcase shall be unclean. 37 And if any part of their carcase fall upon any sowing seed which is to be sown, it shall be clean. 38 But if any water be put upon the seed, and any part of their carcase fall thereon, it shall be unclean unto you. 39 And if any beast, of which ye may eat, die; he that toucheth the carcase thereof shall be unclean until the even. 40 And he that eateth of the carcase of it shall wash his clothes, and be unclean until the even: he also that beareth the carcase of it shall wash his clothes, and be unclean until the even. 41 And every creeping thing that creepeth upon the earth shall be an abomination; it shall not be eaten. 42 Whatsoever goeth upon the belly, and whatsoever goeth upon all four, or whatsoever hath more feet among all creeping things that creep upon the earth, them ye shall not eat; for they are an abomination.
Here is the law, 1. Concerning flying insects, as flies, wasps, bees, &c.; these they might not eat (v. 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, v. 21, 22. 2. Concerning the creeping things on the earth; these were all forbidden (v. 29, 30, and again, v. 41, 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. iii. 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, v. 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. iii. 3. (2.) Even the vessels, or other things they fell upon, were thereby made unclean until the evening (v. 32), and if they were earthen vessels they must be broken, v. 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, Zech. xiv. 20, 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, v. 35. The exceptions also are very nice, v. 36, &c. 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.