Leviticus 11:39-43

And if any beast, of which ye may eat, die; he that toucheth the carcase thereof shall be unclean until the even.

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.

And every creeping thing that creepeth upon the earth shall be an abomination; it shall not be eaten.

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.

Ye shall not make yourselves abominable with any creeping thing that creepeth, neither shall ye make yourselves unclean with them, that ye should be defiled thereby.