Today the Catholic Church celebrates the Solemnity of the Most Holy Trinity. The first thing that came to mind as I pondered this feast day is this quote from the late Michael Himes:
I suppose that no doctrine in the Christian tradition has caused more confusion than the Trinity. But today I fear that, for many people, it is the doctrine that does not make any difference. After all, if someone were to get into the pulpit next Sunday and announce, “We have received a letter from Rome. There has been a change; not three Persons in God, but four,” would it really require people to rethink the way they pray, to reevaluate how they live their marriages or bring up their children or make professional decisions? If not, it is tragic. For the Trinity is not one doctrine among others; It is the whole of Christian doctrine.
“The Trinity is not one doctrine among others; it is the whole of Christian doctrine.” That is a pretty strong statement. If Himes is correct that it is the whole of Christian doctrine, then presumably, we ought to be able to answer the question: How has our understanding of the Trinity made a difference in our faith? And if he is correct that it is the whole of Christian doctrine, it is pretty sad if we can’t do so.
Most of us have difficulty even finding ways to express the Trinity. We know the words: God exists as one being in three persons: Father, Son and Holy Spirit. But what does that mean to say that God is three, but also one?
We try to understand by analogy: The Trinity is like a shamrock leaf. The Trinity is like three interlocking rings (a kind of smaller version of the Olympics symbol). When I was growing up, I thought of it kind of like rub-a-dub-dub, Three men in a tub.” Some others, perhaps, think of God as a kind of committee of three.
The medieval mystic Hildegard of Bingen, in one of her visions, was told by God that the image of Trinity she experienced meant that the Father, who is Justice, is not without the Son or the Holy Spirit; and the Holy Spirit, who kindles the hearts of the faithful, is not without the Father or the Son; and the Son, who is the plenitude of fruition, is not without the Father or the Holy Spirit. They are inseparable in Divine Majesty.
That may not give a complete definition of the Trinity, but it does tell us that the God in whose image we are created is a God of communion, a God of intimacy, a God of relationship. And that tells us that we are created for relationship. God created the universe and human beings to invite human beings into the relational life of the Trinity: We were brought into existence out of love, created for a loving relationship with God. We were created not as autonomous isolated beings, but as beings in communion. (There is a rendition of St. Ignatius’ First Principle and Foundation that reads: “I am from love, of love, for love.” From love, of love, for love.)
So whatever else we understand about the Trinity, it tells us that we are communal beings, made in the image of a communal God, to grow in relationship. Perhaps this is why Michael Himes, who I already quoted suggested that the best statement of the Trinity is found in the First Letter of John, in the simple statement that “God is love.”