Sermon – Solemnity of the Most Holy Trinity – May 31, 2026

On Sunday, after Pentecost, the Church celebrates the Solemnity of the Most Holy Trinity.

After the resurrection, we waited 50 days before celebrating the Holy Spirit.

We celebrate the sending of the Holy Spirit, promised many times by Jesus and awaited by the apostles.

Today, in this celebration, we are united in the Father, the Son, and the Holy Spirit.

This is the essence of everything we celebrate. It is central to our faith.

Our Father who created us, our Son who saves us, and our Holy Spirit who loves us.

But there's a great mystery surrounding this celebration. What is this mystery?

The three are one. We don't have three gods.

We believe in ONE GOD. We believe in one God in three persons.

Why? Because Jesus explained it to us: “But when he comes, the Spirit of truth, he will guide you into all truth. He will not speak on his own, but will speak only what he hears and will tell you what is to come. He will glorify me, for he will take what is mine and tell it to you. Whatever the Father has is mine. Therefore I said, he will take what is mine and tell it to you.”

The Holy Spirit draws from your fellowship with Jesus. Everything the Father possesses belongs to Jesus.

The Father, the Son, and the Holy Spirit are one.

However, it is true that this mystery is difficult to unravel.

Saint Augustine said, "It is easier for human intellect to put all the water of the ocean into this little well in the sand than to comprehend the mysteries of God."

We know that Jesus revealed the Holy Trinity and that the Church teaches us this truth as central to our faith.

Therefore, in the Catechism we read: “The fundamental mystery of the Christian faith and life is the mystery of the Holy Trinity. Christians are baptized in the name of the Father, the Son, and the Holy Spirit” (CCIC, 44).

This is what Jesus told his apostles to do before he ascended to heaven: “Therefore go and teach all the nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit.”

The Trinity is a mystery: He is the eternal Father of an eternally existing Son, and the love between them—which is also eternal—is the Holy Spirit.

The history of our liberation is understood in the Trinity.

The Lord sends two Helpers (Paracletes) to the world to save us from our wickedness and ignorance: Christ Jesus and the Holy Spirit.

Christ Jesus and the Holy Spirit come to teach us the Truth.

Unfortunately, our knowledge in this world is limited. While we are here on Earth, we only have limited knowledge about God.

We cannot know God as He truly is at this moment. Therefore, we cannot fully comprehend the mystery of the Holy Trinity.

As Saint Paul tells us: “Now we see everything as a faint image in a mirror, but then we will see face to face. Now my knowledge is limited, but then I will know everything fully, as I am fully known.”

While we are here, we do not see God as He truly is. In a way, God hides Himself from us.

God conceals her fullness.

Why? Because that's the way God uses to reach our love.

If God were to reveal Himself to us completely, we would be so drawn to Him that we would not be able to love Him freely.

What should true love be like?

To truly love God, we must love Him freely.

Therefore, God is calling us, but He is not forcing anyone to pray, to become Catholic, or to come to church.

If we truly love God, we should freely demonstrate our love for Him.

The Holy Trinity is a community of love. This community, revealed but whose meaning remains partly hidden, awaits the moment when it can see God face to face.

To live a life in the Trinity means to live a life in the love of God, which is true love. This is the love that should be lived in family, at work, and in church.

So God exists.

May Mary help us understand the mystery of the Trinity. May we see the Trinity—the Father, the Son, and the Holy Spirit—as God's great, hidden love for humanity.