Leviticus 11-16 are about how to discern “cleanliness” vs. “uncleanliness.” God is giving us these instructions because He is holy — literally, set apart or distinct — and wants us to be holy, i.e., set apart for God’s purpose. God does not say that we will never be in a situation where we will be exposed to “uncleanliness.” Exposure to “uncleanliness” is a part of being in this world. God is giving us a simple object lesson about how to go from unclean to clean, from unholy to holy.
