This Sunday is also Trinity Sunday, the first Sunday after Pentecost. This Sunday has been set aside in the church calendar as a day when we pay special attention to the Doctrine of the Trinity in our common life.
This doctrine is the very foundation of all Christian faith and practice; it is as the most preeminent theologian of the Trinity among the Church Fathers, St. Gregory Nazianzen, called it, "the only true devotion and saving doctrine" for that very reason (Oration 43.30). Without it, the entire edifice of Christian teaching, from the Incarnation of Jesus and his atoning sacrifice for our sins, to the doctrines of the Church and the Sacraments would come crumbling down. I have often thought that just about all orthodox doctrine hangs on solid Christology, or the doctrine of the person of Christ. This is very true. However, Christology itself hangs on the Doctrine of the Trinity. It is fitting and proper that we should spend at least one day a year focusing our attention on this crucial teaching of Scripture and the Church, especially after we celebrate the descent of the Holy Spirit and the full revelation of God's being and character that he brings to us. Knowledge of the One God as a Trinity of Persons is perhaps the most glorious fruit of Pentecost.
For that reason, we will be substituting the Apostles' Creed which normally comes with the Evening office with a recitation of some of the relevant questions and answers from the new Anglican Church in North America catechism: To Be A Christian: An Anglican Catechism. It may be a bit clunky at first, but I think it's a good exercise for us as those who strive to worship the triune God in Spirit and in Truth.
Come and join us as we worship One God in Three and Three in One.