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Saint Celestine I, Roman Pontiff and guardian of the apostolic faith, belongs to that company of Pastors of the ancient Church in whom the greatness of the Petrine ministry appears in its most austere and luminous form: not as a search for earthly power, but as a service to the truth received from the Apostles and entrusted to the Church so that it might be preserved throughout the centuries.
ROME. His origins are traditionally traced back to Campania, but it was Rome, the heart of Western Christianity and the See of the Apostle Peter, the place where he exercised the mission to which the Lord had called him. Having ascended to the Chair of Peter in 422, after the death of Pope Boniface I, Celestine governed the Church for about ten years, until 432, in an age in which Christianity, by then deeply rooted within the Roman Empire, was nevertheless marked by doctrinal controversies of extraordinary gravity.
These were times in which the Christian faith had to be defended not only from external persecutions, which had profoundly changed compared with previous centuries, but also from interpretations that risked altering from within the mystery of Christ and the doctrine of salvation.
In this context, Celestine I appears as a Pontiff with a profoundly ecclesial awareness, a man of government and at the same time a Pastor, attentive to the life of the Churches and above all zealous for the purity of the deposit of faith.
His figure is inseparable from the great theological controversies of his time, first the one connected with Pelagianism and then, with even greater intensity, the one provoked by the positions of Nestorius, Patriarch of Constantinople.
Pelagianism had raised in radically problematic terms the relationship between divine grace and human freedom, risking diminishing the necessity of grace for salvation and attributing solely to the natural capacity of man a strength that apostolic tradition had always recognized as a gift coming from God.
Celestine, following the tradition of the Church and the teaching of Saint Augustine, firmly defended the centrality of grace and the truth according to which man, wounded by sin, cannot save himself by his own strength, but must be reached and transformed by divine mercy.
In this defense there was no contempt for human freedom; on the contrary, there was the Christian awareness that freedom reaches its perfection precisely when it is enlightened and sustained by grace.
The ministry of Celestine was, however, marked above all by the Nestorian controversy, one of the most dramatic and decisive Christological disputes of antiquity.
Nestorius, who became Patriarch of Constantinople in 428, expressed reservations regarding the title Theotokos, attributed by the devotion and tradition of the Church to the Virgin Mary.
The question, apparently a matter of terminology, in reality contained a much deeper truth: it concerned the very way of understanding the union between divinity and humanity in the one Christ.
If Mary is truly Mother of God, this certainly does not mean that she gave origin to the eternal divinity of the Word, who has always existed with the Father; rather, it means that the one who was born from her according to the flesh is truly the eternal Son of God made man.
The Marian question thus became a Christological question and, ultimately, a soteriological question: if the one born from Mary is not truly God made man, then the Christian understanding of redemption itself is radically compromised.
Celestine understood the gravity of the controversy and did not remain a spectator of an academic dispute. The Chair of Peter became the voice of apostolic Tradition.
At the Synod held in Rome in 430, the Pontiff examined the positions of Nestorius and condemned those propositions that were incompatible with the faith of the Church.
The Roman decision was accompanied by profound pastoral concern: Celestine did not simply seek to pronounce a sentence, but attempted to bring Nestorius back into the communion of faith, granting him a period of time in which to reconsider his positions.
To bear witness to the unity of Catholic doctrine, Cyril, Patriarch of Alexandria, one of the greatest theologians of Christian antiquity, was also called upon.
Between Celestine and Cyril a collaboration was established that was destined to become decisive for the history of the Church. The Pontiff entrusted the Alexandrian Patriarch with the task of representing the position of the Apostolic See, and the great controversy thus moved toward that solemn definition which would find its culmination in the Council of Ephesus in 431.
There the Church proclaimed with strength the personal unity of Christ and defended the title of the Virgin Mary as Theotokos, Mother of God. The faith that Celestine had safeguarded in Rome was thus confessed by the universal Church.
Ephesus was not simply the triumph of one theological school over another, nor the personal victory of a Pontiff or a patriarch: it was, in the awareness of the Church, a moment in which the apostolic faith was once again confessed before future generations.
Mary is the Mother of God because the Son whom she gives birth to in the flesh is one and the same eternal Word of the Father; Christ is not a man merely associated with the Word, but the Word Himself who assumed human nature for our salvation.
And precisely in this truth the spiritual greatness of the pontificate of Celestine I is understood. He defended the faith because he defended Christ; he safeguarded doctrine because he safeguarded the Gospel; he protected the integrity of Tradition because he knew that the Church is not the master of the deposit received, but its humble guardian.
In him one of the deepest characteristics of the Petrine mission appears: the Successor of Peter does not possess the truth as a private property, but is called to serve it, to protect it, to proclaim it and to transmit it whole.
In this sense, Celestine belongs to the great succession of Pontiffs who have understood the Roman ministry as a service to the communion and unity of the Church. His authority did not arise merely from the dignity of the episcopal see, but from the responsibility of safeguarding the faith received.
Rome, under his pontificate, was not however only a place of doctrinal controversies and ecclesial decisions. Celestine was also a great promoter of the Christian life of the city.
He took an interest in the basilicas, the sacred places and the dignity of worship, contributing to the growth of that Christian Rome which, having now emerged from the age of persecutions, was increasingly assuming the clear features of a city marked by the memory of the Apostles and Martyrs.
His attention to the Roman basilicas reveals an important dimension of his pontificate: faith is not only a doctrine to be preserved in the mind, but a mystery to be celebrated, a memory to be made visible, a life to be transmitted through liturgy and prayer.
For this reason, the Rome of Celestine increasingly became a city in which the very stones seemed to bear witness to the victory of Christ.
Among the places that preserve the memory of the Pontiff is the Basilica of Saint Paul Outside the Walls, the great sanctuary built over the memory of the Apostle of the Gentiles.
Beside the memory of Paul, Celestine appears almost as a living link in that apostolic chain which, through the centuries, unites the Church of Rome with the preaching of the origins.
Paul had proclaimed Christ to the nations, facing journeys, persecutions, misunderstandings and dangers; Celestine, centuries later, received the same faith and defended it in a world profoundly transformed, aware that the truth of the Gospel does not change with the passing of ages.
His life is therefore a luminous example of ecclesial continuity: what the Apostles had received from Christ, the Church transmits; what the Church receives, the Pastor must safeguard; what he safeguards, he must deliver to future generations.
Saint Celestine I died in 432, after a decade of governing the Roman Church. Tradition preserved his memory with veneration, and his body was buried in the cemetery of Priscilla, along the Via Salaria, one of the places where Christian Rome preserved the relics of its martyrs and Pastors.
The memory of Celestine would later be transferred to the Basilica of Saint Praxedes, where his name continued to be associated with the great history of the Roman Church.
He thus belongs to that underground and luminous Rome in which the Christian faith was nourished by the blood of martyrs, the prayer of monks, the wisdom of the Fathers and the solicitude of the Pontiffs.
Looking today at his figure, what stands out is not only the complexity of the theological controversies in which he was involved, but above all his profound awareness of pastoral responsibility.
Celestine knew that the Pastor cannot remain silent when the truth of the Gospel is at stake. Yet he also knew that truth must be defended not with the spirit of conflict, but with the charity that springs from faith.
In this balance between firmness and mercy his greatness is revealed. He was not a man who sought confrontation; he was a man who understood that authentic peace can sometimes be achieved only through truth.
The Church cannot build its unity by sacrificing what it believes; it cannot obtain a false harmony by renouncing the truth about Christ. True ecclesial peace instead arises from communion in the same faith.
For this reason, the pontificate of Celestine I can be read as a great living meditation on the meaning of fidelity.
Fidelity to Christ, the center and Lord of the Church; fidelity to the Apostles, from whom the Church received the deposit of faith; fidelity to ecclesial communion, which is not merely a human organization, but the Body of Christ; fidelity to truth, which does not belong to individual men but is received, safeguarded and transmitted within the Church.
Celestine teaches us that the authentic Pastor is not the one who changes the Gospel to make it more easily acceptable, but the one who proclaims it with the strength of charity and defends it with the patience of faith.
His figure rises from ancient history as a pillar of Tradition: silent, steadfast, unshakable.
In him Rome recognizes one of its ancient Pontiffs; the universal Church recognizes a guardian of the faith; Christian tradition recognizes a man who understood that behind every great theological question there is always the face of Christ and, with it, the salvation of humanity.
The memory of Saint Celestine I therefore remains a profoundly ecclesial memory.
He does not hand down to us only the chronicle of a distant pontificate, but a lesson that remains ever relevant: the faith received from the Apostles is a treasure that cannot be treated lightly; Christian truth is not something to be shaped according to the preferences of different ages; pastoral ministry is responsibility, vigilance and service; the unity of the Church finds its foundation in the communion of faith and charity.
And when the Church looks upon the figure of this ancient Pontiff, the voice of the great Tradition seems still to resound: “Custodi depositum,” preserve the deposit.
This, in the end, is the mission that Celestine received and fulfilled with the dignity proper to a Roman Pastor.
He safeguarded what he had received, defended what the Church had always confessed and handed on to the next generation a faith more firmly expressed and more deeply aware of its own unity.
For this reason, Saint Celestine I remains in the memory of the Church as the Pontiff of apostolic fidelity, the Pastor who understood that the highest form of authority is to serve the truth and that the greatest form of love toward the flock consists in leading it always, without deviations and without compromises, toward Christ, the one Lord, true God and true man, the beginning and fulfillment of our salvation.
