The distinction between “clean” and “unclean” animals in Leviticus 11 and Acts 10 echoes the choice between the Tree of Life and the Tree of Knowledge of Good and Bad/Evil in Genesis 2–3. By eating from the Tree of Knowledge, Adam and Eve sought to determine good and bad for themselves, instead of trusting in God’s provision and boundaries.
In this study of Torah reading שְׁמִינִי Shemini (“eighth,” Leviticus 9–11), we’ll see that learning the underlying lesson of distinguishing clean from unclean teaches the commonwealth of Israel to accept God’s designations rather than relying on their own understanding. Those who “eat” what God deems “unclean” place themselves outside of His blessing and life, just as Adam and Eve were expelled from the garden. But by obeying God’s instructions on diet and ritual purity, Israel can enjoy communion with the holy God and partake continually of His life-giving presence, prefigured by the Tree of Life.
Peter’s vision in Acts 10 teaches this fundamental lesson of how “cleaned” believers in Messiah Yeshua (Christ Jesus) are elevated/separated from the “unclean” way of the world.