Leviticus 11:39-45

39‘If one of the animals that you may eat dies [of natural causes], whoever touches its carcass becomes unclean until the evening.

40And whoever eats some of its meat shall wash his clothes, and be unclean until evening; also whoever picks up its carcass shall wash his clothes, and be unclean until the evening.

41‘Now everything that swarms on the ground is detestable; it is not to be eaten.

42Whatever crawls on its belly, and whatever walks on all fours, and whatever has many feet among all things that swarm on the ground, you shall not eat; for they are detestable.

43Do not make yourselves loathsome (impure, repulsive) by [eating] any swarming thing; you shall not make yourselves unclean by them so as to defile yourselves.

44For I am the Lord your God; so consecrate yourselves and be holy, for I am holy. You shall not make yourselves unclean with any of the swarming things that swarm or crawls on the ground.

45For I am the Lord who brought you up from the land of Egypt to be your God; therefore you shall be holy, for I am holy.’ ”