Friends, we come this weekend to the Feast of Corpus Christi, the Body and the Blood of Christ. The Eucharist, as Vatican II famously said, is the source and summit of the Christian life—that from which Christian life comes and that toward which it tends. It's the alpha and the omega of our Christianity. Our three marvelous readings today bring forth three key aspects of the Eucharist: re-presented sacrifice, blood covenant, and spiritual banquet.