A Homily for the Solemnity of the Most Holy Trinity
Sunday, May 31, 2026
Prince of Peace Catholic Church – 8:00 and 12:00 Masses
Exodus 34:4b-6, 8-9; Daniel 3:52, 53, 54, 55, 56; 2 Corinthians 13:11-13; John 3:16-18
Audio Recording
A priest once joked that every attempt to explain the Trinity ends in heresy. That’s because every analogy eventually falls apart. We’ve all heard the attempts: St. Patrick’s shamrock, water as liquid, ice, and steam, or an egg with a shell, white, and yolk. Helpful perhaps, but none quite gets there.
Then there is the old saying often attributed to St. Augustine: “If you try to understand the Trinity, you will lose your mind; if you deny it, you will lose your soul.” Knowing all that, I briefly considered skipping the homily altogether today. After all, if explaining the Trinity risks heresy and trying to understand it risks losing my mind, perhaps silence would be the safest option!
Of course, the Church gives us Trinity Sunday every year precisely because this mystery is too important to ignore. The Trinity is not a problem to be solved but a mystery to be contemplated. It is a truth revealed by God Himself, a truth so deep that we can spend a lifetime reflecting on it and never exhaust its meaning.
In our first reading from Exodus, Moses encounters the living God on Mount Sinai. Moses has already witnessed God’s power in the plagues, the Exodus, and the parting of the Red Sea. Yet Moses wants something more. He wants to know God more deeply. He wants to see God’s glory. And when God chooses to reveal Himself most personally, He does not begin with His power. Instead, the Lord proclaims: “The Lord, the Lord, a merciful and gracious God, slow to anger and rich in kindness and fidelity.”
This is one of the most important descriptions of God in all of Scripture. Moses seeks God’s glory, and God responds by revealing His heart. The Lord reveals Himself not first through power, but through mercy, faithfulness, and steadfast love. This revelation became the foundation of Israel’s understanding of God and prepared the way for the fuller revelation that would come in Jesus Christ.
That fuller revelation is found in today’s Gospel. We hear one of the most beloved verses in all of Scripture: “For God so loved the world that he gave his only Son.” Notice what Jesus does not say. He does not say that God tolerated the world or reluctantly put up with humanity. He says that God loved the world. The Father’s love is so great that He gives His only Son for our salvation.
This is the heart of the Gospel and the heart of the Christian faith. Humanity had fallen into sin and could not save itself. Yet God did not abandon us. The Father sent His Son into the world. Jesus suffered, died on the Cross, and rose again so that we might have eternal life. As Jesus tells us today, God sent His Son not to condemn the world, but that the world might be saved through Him.
That saving work continues through the Holy Spirit. In our second reading, St. Paul concludes his letter to the Corinthians with one of the clearest Trinitarian blessings in all of Scripture: “The grace of the Lord Jesus Christ and the love of God and the fellowship of the Holy Spirit be with all of you.” In a single sentence, Paul speaks of the Son, the Father, and the Holy Spirit. Grace comes through Jesus Christ. Love comes from the Father. Fellowship and communion come through the Holy Spirit.
Paul presents the Trinity not as an abstract doctrine but as a lived reality. We experience the grace of Christ, live within the Father’s love, and share in the fellowship of the Holy Spirit. The Trinity is not merely something we believe. It is the reality in which we live as Christians.
When we put today’s readings together, a beautiful picture emerges. The Father reveals Himself as merciful and faithful. The Son reveals the Father’s love by laying down His life for us. The Holy Spirit draws us into communion with God and with one another. The Most Holy Trinity…one God in three persons.
The Trinity is not a mathematical puzzle to be solved. The Trinity is God’s revelation that the deepest reality in the universe is love. Let me say that again…listen now.
The Trinity is not a mathematical puzzle to be solved. The Trinity is God’s revelation that the deepest reality in the universe is love.
And love is always relational. Love involves the giving of oneself to another. If God is love, as St. John tells us, then within God’s own life there must be relationship, communion, and self-giving love. The mystery of the Trinity reveals that from all eternity the Father, the Son, and the Holy Spirit have existed in a perfect communion of love.
Before there was a universe, before there were stars, before there was humanity, there was love. The eternal love of the Father, the Son, and the Holy Spirit. And that love overflowed into creation, into redemption, and into the promise of eternal life.
Our world often tells us something very different, doesn’t it? We’re told that success, power, wealth, or personal achievement will bring fulfillment. Yet none of those things can satisfy the deepest longings of the human heart. We were created for something greater. We were created for relationship. We were created for communion. We were created for God.
Because we are made in the image and likeness of God, we find fulfillment when we imitate God’s own life of self-giving love. We see this in faithful marriages, in parents who sacrifice for their children, and in those who serve the sick and the poor. Whenever we place the good of another before our own desires, we reflect the God in whose image we were made.
This is why the Trinity matters. It is not simply a doctrine to be learned. It is a way of life to be lived. The Father gives Himself to the Son. The Son gives Himself to the Father. The Holy Spirit is the eternal bond of love between the Father and the Son. To follow Christ is to learn that true happiness is found not in self-centeredness but in self-giving love.
Every time we make the Sign of the Cross, we proclaim this mystery. Every time we celebrate Baptism, we do so in the name of the Father and of the Son and of the Holy Spirit. Every Mass begins and ends in the life of the Trinity. We are surrounded by this mystery because we’re called to participate in it.
As we celebrate Trinity Sunday, perhaps the most important thing to remember is that God has revealed this mystery not to confuse us, but to invite us into His own divine life. Through the Father, the Son, and the Holy Spirit, we are invited into the heart and communion of the Trinity.
One day, if we remain faithful to Christ, we will share fully in that eternal life of the Trinity. This is what we were created for. This is what Christ died to give us. And this is the eternal rest for which every human heart longs.
In the name of the Father, and of the Son, and of the Holy Spirit. Amen
God bless you.