Leviticus 20:22-26

22“You are to keep all my statutes and all my ordinances, and do them, so that the land where I am bringing you to live will not vomit you out.

23You must not follow the statutes of the nations I am driving out before you, for they did all these things, and I abhorred them.

24And I promised you: You will inherit their land, since I will give it to you to possess, a land flowing with milk and honey. I am the Lord your God who set you apart from the peoples.

25Therefore you are to distinguish the clean animal from the unclean one, and the unclean bird from the clean one. Do not become contaminated by any land animal, bird, or whatever crawls on the ground; I have set these apart as unclean for you.

26You are to be holy to me because I, the Lord, am holy, and I have set you apart from the nations to be mine.