Rev. Marcel Divine Emeka Okwara, CSsR
Homily on the Solemnity of the Most Holy Trinity, Year A
Church of St. Bridget of Minneapolis, MN
Sunday, May 31, 2026
Some describe the Solemnity of the Most Holy Trinity as one of the most dreaded Sundays for priests and deacons. They call it the preacher’s nightmare. Some priests jokingly say it is the only day a priest is allowed to preach heresy. By the way, I do not subscribe to those statements. The Trinity is not that complicated.
Now, if you ask Catholics what the central mystery of the Christian faith is, many would say it is the Eucharist, after all, it is the Source and Summit of the Christian life. Others will say it is the Resurrection of Jesus from the dead. Some will say it is his atonement on the cross. Some will say it is the Incarnation. As vitally important as all of these are, the Church teaches that the Trinity is the central mystery of our faith. According to the Catechism of the Catholic Church, “The mystery of the Most Holy Trinity is the central mystery of Christian faith and life. It is the mystery of God in 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” (CCC 234). Yet for many of us, when the Trinity is mentioned, we don’t know what to do with it. Some people even treat it as bad mathematics. They argue: if there are three persons—Father, Son, and the Holy Spirit in the Trinity, it cannot be one God but three Gods. The doctrine of the Trinity is the belief that God is one in being and three in person. It is not a contradiction or bad mathematics, as some have suggested. If I were to say that the Trinity is one in being and three in being, that would be a contradiction. What is the difference between a being and a person? A being is what makes you what you are. A person is the quality that makes you who you are. What kind of being am I? I am a human being. But who am I? I am Father Marcel Okwara. What I am is a human being; that is my being. Who I am is Marcel; that is my person. The two are not the same thing. All of us share the same being and nature. We are all human beings. But none of you essentially shares the same kind of person I am. We are all different persons. The great St. Augustine explained the Trinity as one God in three distinct persons—the Father, the Son, and the Holy Spirit—who share the exact same divine nature. While they share the exact same divine nature (one in being), they function as three unique identities (three in person).
Why is the Trinity the most fundamental truth in Christianity, upon which all other truths of the faith rest? The Trinity is not about what God has done in human history, such as creation, the Incarnation, the institution of the Eucharist, atonement on the cross on Good Friday, the Resurrection, etc., but about who God is in himself. Consider how we entered the Church and how we live our devotional life as Catholics. What formula were you baptized in? The Trinitarian formula: “I baptize you in the name of the Father, and of the Son and of the Holy Spirit.” Where did we get this baptismal formula? On the Mount of Ascension, Jesus speaks to his disciples, saying, “All power in heaven and on earth has been given to me. Go, therefore, and make disciples of all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Spirit, teaching them to observe all that I have commanded you.” So, at the beginning of our lives as Christians, we were baptized in the name of the Trinity. Whenever you enter a church and dip your fingers into the holy water, what else do you do? You make the sign of the cross. And that sign is also the sign of the Trinity. So, from the sacramental and devotional dimensions, you are already drawn into the Trinity.
What can we learn from the Holy Trinity? The true and living God is unknown. The Athenians were right to erect an altar and dedicate it to the “Unknown God.” At a certain time and place, this unknown God revealed himself to Abraham. Centuries later, he revealed himself again to Moses. Not only did he reveal himself to Moses, but he also revealed his name. In our first reading (Exodus 34:4b-6, 8-9), God revealed his attributes: merciful, gracious, slow to anger, rich in kindness, and faithful. Now, what does God want? Why does he reveal himself to his puny creature, the human race? God wants a relationship. Among other reasons, the chief reason you reveal yourself to a stranger is to relate to that person more deeply. God wants to relate to us; he wants to be in a relationship with us. That’s why he constantly reveals himself. But God’s subsistence, fullness, or greatness does not rest on this relationship; it is rather ours. Our relationship with God makes us fully alive; we become greater, and our existence becomes more meaningful and purposeful. The true God reveals himself to the human race for the sake of the human race. So, the first lesson from the Trinity is relationship: first with God, and second with the people of God for the sake of God. For this reason, make an effort to know your brothers and sisters in the faith. Do not be in a hurry to leave after Mass. Greet the priest, hang out, and introduce yourself to someone you do not know. Do not always stand and talk to people who already know you. Identify someone you don’t know, approach the person, and initiate a conversation. I know that this is not always easy or comfortable, but it is possible. The God we serve has shown us how to reach out. If you are truly into him, you will do likewise. Become like the God we worship.