and deacons also perform the λειτουργία of prophets and teachers. The Apostolic Tradition 10 claims that clerical ordination is propter liturgiam. For the Churches in the East, which have consistently kept this usage, λειτουργία means the sacred rites in general and the eucharistic celebration in particular. This second meaning is referred to when we speak of the liturgy of St. John Chrysostom, of St. Basil, of St. James, of St. Mark, etc. The Latin Church, on the other hand, used terms like officia