Leviticus 20:24-26

24But I have told you that you will inherit their land, since I will give it to you as an inheritance—a land flowing with milk and honey. I am the LORD your God, who has set you apart from the peoples.

25You are therefore to distinguish between clean and unclean animals and birds. Do not become contaminated by any animal or bird, or by anything that 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 My own.