Ep. 190 - Created for Communion: The Trinity and the Longing of the Human Heart
Mass Readings for May 31, 2026
The Church is still ringing with the echoes of Pentecost when she thrusts us headlong into the dazzling mystery of the Most Holy Trinity. This week, we’ll wrestle with the central paradox of the Christian faith—one God in three persons—untangling what “mystery” really means, and why the doctrine of the Trinity shapes everything we believe. We’ll punch through Arianism’s threat, glean clarity from St. Augustine, and examine how knowledge and love form the very image of God in us. Finally, we’ll explore how contemplating the Trinity unravels unhappiness, banishes hypocrisy, and reveals beauty from the inside out.
In this episode, we’ll journey through the depths of the Trinity and explore:
How the Church gives us the feast of the Most Holy Trinity immediately following Pentecost and why its placement is profoundly intentional [00:01:04]
What the Church means by calling the Trinity a "mystery" and why reason alone, not even Israel’s faith, could ever arrive at it without Christ and the Holy Spirit [00:10:25]
The early Church crisis of Arianism that threatened to "bury" the doctrine of the Trinity and how the Church’s liturgical life rose up in response—with the feast itself formally established in the 1300s [00:16:12]
St. Augustine’s brilliant analogy of the Trinity as the perfection of knowledge (Father and Son) and love (Holy Spirit), and why this matters for how we image God [00:20:43]
Four simple points to remember about the Trinity: one God, two processions, three persons, four relations—and exactly what each means in plain language [00:28:02]
How St. Thomas Aquinas breaks down John 3:16 word by word to reveal the perfection and unsurpassed greatness of God’s love [00:34:03]
Why contemplating the Trinity, according to Cardinal Raniero Cantalamessa, has the power to overcome the world’s unhappiness, hypocrisy, and obsession with false beauty [00:38:35]
Why our longing for admiration and fulfillment now can only be fully satisfied in heaven—where the Trinity’s perfect knowledge and love finally draws us in [00:49:06]
References
“By natural reason man can know God with certainty, on the basis of his works. But there is another order of knowledge, which man cannot possibly arrive at by his own powers: the order of divine Revelation.” (Catechism of the Catholic Church 50)
“The Trinity is a mystery of faith in the strict sense, one of the ‘mysteries that are hidden in God, which can never be known unless they are revealed by God.’ To be sure, God has left traces of his Trinitarian being in his work of creation and in his Revelation throughout the Old Testament. But his inmost Being as Holy Trinity is a mystery that is inaccessible to reason alone or even to Israel’s faith before the Incarnation of God’s Son and the sending of the Holy Spirit.” (Catechism of the Catholic Church 237)
“The mystery of the Most Holy Trinity is the central mystery of Christian faith and life.” (Catechism of the Catholic Church 234)
“The Church uses (I) the term ‘substance’ (rendered also at times by ‘essence’ or ‘nature’) to designate the divine being in its unity, (II) the term ‘person’ or ‘hypostasis’ to designate the Father, Son, and Holy Spirit in the real distinction among them, and (III) the term ‘relation’ to designate the fact that their distinction lies in the relationship of each to the others.” (Catechism of the Catholic Church 252)
“The grace of the Lord Jesus Christ and the love of God and the fellowship of the Holy Spirit be with you all.” (2 Corinthians 13:14)
“By proclaiming that God suffers too. People do not want God only as a companion in their suffering, they are looking to him as the guarantor of joy itself.” (Cantalamessa 18-19)
“It is time, I was saying, to begin boldly to proclaim this ‘joyful message’ that God is happiness, and that happiness—not suffering, deprivation, or the cross—will have the last word.” (Cantalamessa 24)
“To cultivate outward appearance more than the heart automatically means giving more importance to human beings than to God. Hypocrisy, then, is essentially a lack of faith, a form of idolatry in which creatures are given the place of the Creator.” (Cantalamessa 54)
“Hypocrisy is also a lack of charity toward one’s neighbor, because it tends to reduce brothers and sisters to admirers. It does not recognize the dignity that is properly theirs, because it sees others only in relation to one’s own image.” (Cantalamessa 54-55)
“God’s appearance—his manifestation outside of himself—is always infinitely inferior to his being. For us, unfortunately, just the opposite is true: our appearance tends to be superior to our being.” (Cantalamessa 50)
“Modern man ‘doubts the truth, resists the good, but is fascinated by beauty.’” (Cantalamessa 66)
“Because he [Jesus] took flesh, he took, as it were, your hideousness, that is, your mortality, that he might adapt himself to you and correspond to you and arouse you to loving the beauty within.” (St. Augustine, Tractates on the First Epistle of John 9, 9 quoted in Cantalamessa 73)
“The fact that a saint is strong or weak, rich or poor, highly intelligent or illiterate, does not add or subtract anything because that person’s greatness is on a different and infinitely superior plane.” (Cantalamessa 76)
Bibliography
Aquinas, Thomas. Commentary on the Gospel of John: Chapters 1–21. Translated by Fabian Larcher and James A. Weisheipl. Washington, DC: The Catholic University of America Press, 2010.
Cantalamessa, Raneiro. Contemplating the Trinity: The Path to the Abundant Christian Life. The Word Among Us Press, 2007. Kindle Edition.
Discussion Questions
What does it mean for the Trinity to be described as a "mystery" in theological terms? How does this differ from a general use of the word "mystery"?
The episode discusses why belief in the Trinity is foundational to Christian faith. Why does the doctrine of the Trinity hold such a central place and what happens if this doctrine is undermined?
How does the early Church heresy of Arianism relate to the Trinity and what were its potential implications for Christian theology?
St. Augustine’s analogy for understanding the Trinity is explored. How does Augustine use the concepts of “knowledge” and “love” to help us comprehend the relationships within the Trinity?
In what ways does the episode suggest that humans are made in the image of the Trinity, especially regarding intellect and will? How does this shape our understanding of being created in God's image?
Katie summarizes the Trinity using the structure of "one God, two processions, three persons, four relations." How helpful is this summary in your own comprehension or explanation of the Trinity to others?
According to the episode, what are some practical effects of contemplating the Trinity in the life of a believer, especially regarding happiness and fulfillment?
Drawing from Fr. Raniero Cantalamessa, Katie suggests that contemplating the Trinity can overcome unhappiness, hypocrisy, and false beauty. Can you identify examples of each in modern culture, and how might contemplation of the Trinity address them?
How is the love described in John 3:16 connected with Aquinas’ explanation of the perfection of God’s love? What implications does this have for how we understand God’s relationship to humanity?
Why is it significant that the Solemnity of the Most Holy Trinity follows Pentecost in the liturgical calendar? What does this order emphasize about our understanding of God?