so that you may know the difference between clean and unclean, and so that you may know what you ought to eat, and what you ought to refuse
Other versions
King James Version
To make a difference between the unclean and the clean, and between the beast that may be eaten and the beast that may not be eaten.English Standard Version
to make a distinction between the unclean and the clean and between the living creature that may be eaten and the living creature that may not be eaten.New International Version
You must distinguish between the unclean and the clean, between living creatures that may be eaten and those that may not be eaten.'"