Leviticus 11:44-48

For I am the Lord your God. Consecrate yourselves therefore, and be holy, because I am holy. And you shall not make yourselves unclean with any of the swarming things that swarm on the earth.

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

This is the law regarding the animal and the bird, and every living thing that moves in the waters and everything that swarms on the earth,

to make a distinction between the unclean and the clean, and between the edible creature and the creature which is not to be eaten.