The Solemnity of the Most Holy Trinity [C]
June 15, 2025
John 16:12-15
The mystery of the Holy Trinity stands at the center and foundation of our faith because it reveals the very nature of God. Our logical minds can deduce that there is one God, a perfect Being who created and sustains all things. Yet, we depend on divine revelation to grasp this profound truth. The word “Trinity” does not appear in Scripture, but the Bible, both in the Old and New Testaments, unveils this reality. Scripture affirms there is only one God, yet simultaneously reveals a plurality within His oneness.

One intriguing passage that hints at the Trinity is the very verse that declares God’s oneness—the Shema Israel (Deuteronomy 6:4). The Hebrew text reads: “שְׁמַע יִשְׂרָאֵל יְהוָה אֱלֹהֵינוּ יְהוָה אֶחָד” (Shema Yisrael Adonai Eloheinu Adonai Echad). Most English translations render this as, “Hear, O Israel: The Lord our God, the Lord is one.” However, a more literal translation would be: “Hear, O Israel: The Lord, our God, the Lord, one.” It is striking how the verse mentions the Lord three times before concluding with “one.”
Other Old Testament passages also suggest plurality within God’s unity. For example: Gen 1:1-2 and 1:26 speak of God creating with His Spirit and using the plural “Let Us make man in Our image.” The Angel of the Lord appears as a divine yet distinct figure (Gen 16:7-13; 22:11-18; Exo 3:2-6; Judg 13:18-22). The Spirit of God is active in the Psalms and prophets (Ps 51:11; Isa 63:10-11; 48:16; Eze 36:26-27). Prophet Zechariah (2:10-11) even speaks of “two Yahwehs.” Yet, the fullness of this mystery is only fully revealed in the New Testament.
One of the most definitive Trinitarian passages is Matthew 28:19: “Baptize them in the name of the Father and of the Son and of the Holy Spirit.” Here, Jesus speaks of one name, yet within that one name are three distinct Persons: Father, Son, and Holy Spirit.
However, the Trinity is more than a biblical truth, but it is the most precious gift to us. As St. Paul writes, “No one can say, ‘Jesus is Lord,’ except by the Holy Spirit” (1 Cor 12:3). The Spirit infuses faith in our hearts, enabling us to confess Christ, the Son of the Father. The same Spirit pours hope into us amid trials, especially for confessing the true God (Rom 5:3-5). And when we love, even those hardest to love, we participate in the life of the Triune God, whose very essence is love (1 Jn 4:8).
The Trinity is not merely a doctrine to profess but a mystery we live daily. We enter Christian life through Trinitarian baptism. As Catholics and Orthodox, we begin prayers with the Sign of the Cross, invoking the Father, Son, and Spirit. In the Eucharist, the Holy Spirit transforms the bread and wine into Christ’s Body and Blood, offered to the Father as the perfect sacrifice.
As we celebrate this greatest mystery of our faith, let us give thanks that God invites us into His very life—Father, Son, and Holy Spirit—now and forever.
Rome
Valentinus Bayuhadi Ruseno, OP
Guide Question:
How do we relate with the Holy Trinity? When the first time, we recognize the truth about the Trinity? How do we relate to the Father? How do we relate to Jesus? How do we relate to the Holy Spirit?









We are re-entering the ordinary season of the Church, and one of the greatest feasts within the ordinary time is the solemnity of the Most Holy Trinity. The Church has placed the celebration of the great feast on Sunday after the Pentecost. The reason may not be that obvious, but if we look at the bigger picture, it is nothing but a natural procession of truth. In Easter, we are celebrating the resurrection of Jesus that cements the divinity of Christ. On the Pentecost, we witness the divinity of the Holy Spirit being affirmed [see last Sunday’s reflection]. Now, we are rejoicing for the Three divine persons in God.