25 " 'So you must be able to tell the difference between animals that are "clean" and those that are not. You must know which birds are "clean" and which are not. Do not make yourselves "unclean" by eating any animal or bird that is not "clean." Do not make yourselves "unclean" by eating anything that moves along the ground. I have set all of them apart. They are "unclean" for you.