# for which a distinction is to be made between
"for which you must distinguish between"
# between the unclean and the clean
Animals that God declared to be unfit for the people to touch or eat are spoken of as if they were physically unclean, and those which he declared to be acceptable for the people to touch and eat are spoken of as if they were physically clean.
# that may be eaten ... that may not be eaten
"that you may eat ... that you may not eat"