NB. This homily is from 2012. I preached it last night at OLR in a different version but forgot to bring my recorder.  
Most Holy Trinity
Fr. Philip Neri Powell, OP
Our Lady of the Rosary, NOLA
The Most Holy Trinity is a Mystery. . .Catholics of a certain age will 
recall hearing the term “mystery” used to describe many of our essential
 beliefs. If you pray the rosary, you will hear the word “mystery” used 
to describe the events of Jesus' life—sorrowful, joyous, glorious, and 
luminous. What does the word “mystery” mean?  Mystery conveys the idea 
that what is usually hidden from us has been revealed; that which is 
usually unreachable by us is put within our grasp; and that which is 
usually unknowable to us is made knowable. There are two essential 
elements in the Christian idea of mystery:  1). the truth of the mystery
 is always revealed to us, never found by us; and 2). the fullest understanding of 
the mystery comes only when we stand before the Lord face-to-face. Of 
all the mysteries that define our relationship with God, the Holy 
Trinity serves as the central mystery. By what means do
 we unlock this mystery?  How do we participate in the life of the Holy 
Trinity? 
Without hesitation, the Church proclaims the Holy Trinity to be a 
mystery. Incomprehensible, baffling, and curious. And even as she 
declares the ineffable nature of the Trinity, the Church exhausts every 
resource—philosophical, theological, and magisterial—to unlock the 
puzzle of the Divine Persons and to describe the mystery of the Godhead 
as Three-in-One. One God, three Persons. Three distinct Persons with one
 divine nature, one God—Father, Son, and Holy Spirit. What is knowable 
and known about the Holy Trinity is knowable and known as a gift, freely
 revealed by God Himself. Whether we come to know what we know by reason
 or faith, we know it because God wills that it be known and to the 
degree that He wills us to know it. Both reason and faith are gifts. 
Both lead to His truth. Both operate by His grace. And because we are 
limited creatures and receive His gifts imperfectly, both reason and 
faith are misshapen keys that cannot fit the lock that keeps the 
fullness of His mystery away from us. For us to know His mystery 
perfectly we must be perfected in the mystery; essentially, we must 
become the mystery in order to see Him face-to-face. This perfection 
requires more than curiosity, more than intellectual prowess, and more 
than pious determination. It requires us to suffer. 
Paul writes to Christ’s Church in Rome, no doubt telling them what all 
Christians at the time already knew by long experience. He writes that 
if we will become the children of God, co-heirs of His kingdom with 
Christ, “we [must] suffer with [Christ] so that we may also be glorified
 with him.” To look forward to glory with Christ in heaven, we must look
 no further than how we suffer with Christ right now. If we foolishly 
believe that heavenly glory comes without earthly suffering, we 
foolishly believe that we can go to the Father without Christ. We go to 
the Father with Christ by becoming Christ and to become Christ we must 
follow him along his suffering way. We bear a cross. We walk the way of 
sorrow. We are crucified in the flesh. And we cry out in despair even as
 we are given up for the love of our friends. If we want to know 
mystery, we must become mystery. When we stand away from Christ’s 
suffering, avoiding at any cost the troubles that come with dying and 
rising again with him, we return his gift unopened; and not only do we 
remain in ignorance of the mystery, we tempt spending our life eternal 
apart from his glory. 
But why believe the promise of eternal life in the first place? Why 
trust  a promise made by an unseen god? Why should we come to understand
 our pain, our loss, and our mourning as necessary parts of God’s plan 
to make us His heirs? Moses challenges God’s people, saying: “Ask now of
 the days of old, […] Did anything so great ever happen before? Was it 
ever heard of? Did a people ever hear the voice of God speaking from the
 midst of fire, as you did, and live?” Even as they suffer in the desert
 on the way to the Promised Land, God speaks in fire and smoke to His 
people, showing them the way to their salvation. Even as they suffer, 
God is with them. Even as they suffer, God chooses them to be His 
people, a holy nation, a royal priesthood. As a nation, they are His 
prophets and kings and for this they suffer. He takes them out of 
slavery and into the desert on a promise, on a covenant-oath never to 
abandon them, never to forsake them to final godlessness. In response to
 this gift, Moses acclaims, “This is why you must now know, and fix in 
your heart, that the Lord is God in the heavens above and on earth 
below, and that there is no other.” If this piece of the puzzle, this 
truth of the mystery is fixed in our hearts, a truth we now know, why do
 we shrink from suffering? 
Look at the disciples. Jesus orders them to a high mountain in Galilee. 
Matthew reports in his gospel that “when they all saw [Christ], they 
worshiped, but they doubted.” What did they doubt? Do they doubt the 
veracity of his teachings? Do they doubt their own strength? Their 
piety, their determination, their intellectual prowess? No! They doubt 
the true nature of the one who stands before them, freely offering them 
the Kingdom of his Father. Knowing the reason for their doubtful hearts,
 Jesus says, “All power in heaven and on earth has been given to me.” 
With all the power of heaven and earth, Jesus fulfills the covenant as 
his Father promised He would. With all the power of heaven and earth, 
Jesus reveals the Father and His Son and promises the coming of the Holy
 Spirit. With the power of heaven and earth, Jesus sends his disciples 
out as apostles to baptize, to teach and preach, and to make disciples 
of the whole world. And these newly anointed apostles are to do all this
 in the name of the Father and of the Son and of the Holy Spirit, in the
 name of the Triune Mystery; and as they preach and teach and baptize, 
they become more and more fully sons of God. They doubt no longer. 
When their Lord is arrested and convicted, scourged, crucified, and 
raised from the dead, the apostles testify their way to heaven: to glory
 through suffering, to the fullness of the mystery through earthly trial
 and persecution. And so they walked behind him with their crosses all 
the way to heaven. Each one teaches, preaches, makes disciples, and 
spends his life doing what Christ did so to become like Christ for those
 who would follow after them. We are those who follow after. And whether
 we suffer in small ways or grand, in jail or exile, at home or far 
away, so long as we do all things for the greater glory of God, Christ 
says to us, “[…]behold, I am with you always, until the end of the age.”
 Therefore, our suffering can never be useless misery; it brings us 
nearer to the Triune Mystery we were made to adore, that we were made to
 become according to His will for us. 
Words and images, concepts and logic, ancient wisdoms and new, none 
approach the unapproachable light that blinds the holiest human eye. The
 glory of God at once seduces and repels, draws in and pushes out. And 
whether you are reeled in or run away reeling hangs on the clearest of 
Christian truths, one key truth: have you suffered as Christ 
suffered—for the love of your friends in name of the One Who made you? 
This key fits any lock, opens every door, lifts any lid. This key, the 
Key of David, the only Son of God, opens the treasure house of the 
Father’s Kingdom and makes us heirs to the fortunes of heaven. The Good 
News of salvation is that there is no chain so tight, no cell so strong,
 no sin so enslaving that the key of the cross cannot free us. Yes, we 
must suffer to follow Christ, to grow in mystery, to join him in his 
glory. But this no burden. It is a blessing. “[We] did not receive a 
spirit of slavery to fall back into fear, but [we] received a Spirit of 
adoption, through whom we cry, "Abba, Father!’” 
_______________________
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