Leviticus 11:39-45

39And if any beast, of which ye may eat, shall die; he that toucheth its carcase shall be unclean until the evening. 40And he that eateth of its carcase shall wash his clothes, and be unclean until the evening: he also that beareth its carcase shall wash his clothes, and be unclean until the evening. 41And every creeping thing that creepeth upon the earth shall be an abomination; it shall not be eaten. 42Whatever goeth upon the belly, and whatever goeth upon all four, or whatever hath many feet among all creeping things that creep upon the earth, them ye shall not eat; for they are an abomination.1

43Ye shall not make yourselves abominable with any creeping thing that creepeth, neither shall ye make yourselves unclean with them, that ye should be defiled by them.2 44For I am the LORD your God: ye shall therefore sanctify yourselves, and ye shall be holy; for I am holy: neither shall ye defile yourselves with any manner of creeping thing that creepeth upon the earth. 45For I am the LORD that bringeth you out of the land of Egypt, to be your God: ye shall therefore be holy, for I am holy.