As the only “holy day'” set aside to celebrate a “doctrine” rather than an event in Jesus’ life or a sainted person, Trinity Sunday does not lend itself so much to sermons about the Trinity, but rather invites us into standing before our God in reverence and in awe. God is ultimately unknowable, even though revelation has come to us through scripture, tradition, and reason, giving us glimpses — and more than glimpses — of the divine nature.
And so the biblical texts today describe Isaiah’s experience of his call to be a prophet in the midst of temple worship ( Isaiah 6:1-4). In the second reading, St. John the Divine holds up a vision of heavenly worship in order to sustain his community as they were facing persecution in the early days of the Church’s life (Revelation 4:2-6). And the Gospel lesson quotes Jesus in what is perhaps the perfect text for Trinity Sunday: “I still have many things to say to you, but you cannot bear them now!” (John 16:12)
In an earlier posting about Anglican and Orthodox relations, I mentioned a wonderful new resource entitiled “The Church of the Triune God.” And I would commend it to anyone for use in the classroom, for study and discussion, for theological reflection, even as a focus for meditation on the mystery of the Holy and Undivided Trinity.
Today, I hope you will simply join with fellow Christians in quiet and splendid beauty, listen to the descriptions of heavenly worship, sing the words of hymns exalting the Triune God in poetic phrases which lift the mind and heart, pray “in spirit and in truth,” and receive in faith the sacrament of Bread and Wine.
And, after you have so worshiped, say with Isaiah, “Here am I…send me!”