Deuteronomy 14: What does God have against certain types of meat?

These instructions of “clean” and “unclean” animals connect to a bigger lesson in Deuteronomy 13–14 on the Third Commandment, about blaspheming the Name of the LORD, or making the Name common. “Cleaning” what’s distant from God is the real lesson beyond clean/unclean in Leviticus 11, Deuteronomy 14 and Acts 10.