We Welcome Everyone. Our Sunday worship is the celebration of the Holy Eucharist, also called the Mass. During this service we gather together to hear God's Word in Holy Scripture, to pray together, and to celebrate the Liturgy of the Lord's supper, or Holy Communion. St. Luke's is a part of the worldwide Anglican communion, in the Episcopal Diocese of Chicago. We are part of Christ's one, holy, catholic, and apostolic Church, which has carried on the work of Jesus Christ for nearly two thousand years.