Fr. Jo's Reflection for the Most Holy Trinity, Year A, May 31, 2026
Around the year AD 200, one of the early Church Fathers, by name Tertullian, used the word “Trinity” to describe God. 125 years later, at the Council of Nicaea (AD 325), the Church adopted this term in expressing God’s nature as we proclaim every Sunday in the Nicene Creed. The Catechism of the Catholic Church teaches that “the mystery of the Most Holy Trinity is the central mystery of Christian faith and life. It is the mystery of God Himself. It is therefore the source of all the other mysteries of faith, the light that enlightens them. It is the most fundamental and essential teaching in the ‘hierarchy of the truths of faith.’” What does this mystery teach? To sound really theological, one can employ the Greek term “perichoresis” used by Sts. John Damascene and Gregory Nazianzus. Perichoresis in theological parlance describes the mutual interpenetration of the hypostasis (persons) of the Father, Son and Holy Spirit who are individually and together of one ousia (essence). That sounds abstract, and I admit to that. However, you can forget about those high-sounding philosophical terms and look at it plainly. Take for example, the idea of the family. No single person talks about herself or himself as a family. Even when someone marries, she’s reluctant to refer to herself and her husband as a family. But once a child comes into the equation, individuality and spousal categorizations give way to family relationship. The mutual interpenetration implied in the trinity is similar to the change that results in the formation of the family unit, which consists of a husband, wife and child(ren). Mr. Smith, Mrs. Smith, and Ms. Smith are all of the same Smith family. In the trinity, the Church teaches that the Father, the Son and the Holy Spirit are all one God, but exist as three persons. God is essentially family.
Does that explain the mystery of the trinity? Of course, not. While we can know something about a mystery, we cannot fully understand or explain it. It is beyond our capacity as mortal creatures to grasp immortal or supernatural reality. It shouldn’t surprise us that we’re incapable of understanding God fully. Just like a kindergartener is incapable of understanding algebra and calculus, in the array of possible knowledge of reality, humans are kindergartners in relation to divine realities. It’s not only arrogant but also stupid to claim that if we cannot fully know God, that makes God unknowable or inexistent. Even in the natural universe, we are incapable of knowing everything contained therein. My grandfather who only knew about telegram would have dismissed the possibility of email messages. Is it possible that God is too great for us to understand Him fully? Yes, because we do not possess the same level of knowledge as God and do not exist at a level contemporaneous with God. When we meet God face to face, we’ll no longer seek any understanding of Him because we’ll be filled with extreme delight at His presence. The book of Revelation sums it: “His name will be written on their foreheads and there will be no need for lamplight or sunlight because the Lord God will shine on them, and they will reign forever” (Rev 22:4).
Having said these, the question remains: “Of what relevance is the doctrine of the trinity to believers?” The trinity teaches love, unity, and mutual understanding. These qualities subsist in the trinity and preclude the possibility of tension, discord, and unfaithfulness. When we learn to live like God, we’ll overcome the tensions in human relationships, which result from lack of unity and love. Tensions in marriages, friendships, alliances, as currently very deep in our national discourse result from lack of love and unity. Unlike God who is unity, the devil, whose essence is division sows discord among us, causing us to tear each other down. Abandonment of God results in making idols of ourselves and our desires, leading to disunity. Friendships, alliances, and laws not built on God, on the inner life and love of the trinity, are destined to collapse.
Fr. Chukwudi Jo Okonkwo

