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.

Next, we hear that if an animal was unclean for eating, then it was also unclean to touch its carcass. One could touch a living pig, but if he either tried to eat it or touch its corpse, he would be unclean.

The symbolism is clear here. We want nothing to do with the unclean things of the world, and the death that they cause, whether physical or spiritual. We do not take stolen money, we do not spread rumors, and we do not take joy at the suffering of others. If we are to have success in this world, let us have it honorably and honestly, and not take undue advantage or ill-gotten spoils.