Every Divine Liturgy is (a celebration of) Pentecost

It's easy for us to think of the Divine Liturgy as a participation in the New Covenant because of its ties to the Mystical Supper (and Passion/Resurrection), but our hosts describe how it is also tied explicitly to Pentecost. They also talk about the beauty and utility of exploring the Old Testament Pentecosts (and they did not even cover them all!).