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The First Eucharistic Controversy: Christ’s Real Presence

The First Eucharistic Controversy: Christ’s Real Presence

Last updated on: October 16, 2026 at 4:46 pm by William Hemsworth

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The First Eucharistic Controversy: Christ’s Real Presence 2026-10-16T16:46:15-07:00 William Hemsworth

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For Catholics, the Eucharist is the source and summit of the Christian life. It is not merely a symbol that reminds us of what Christ accomplished on Calvary, nor is it simply a communal meal where Christians gather to remember their Lord. The Eucharist is Jesus Christ himself, truly present under the appearances of bread and wine. This belief is central to Catholic theology and has its roots in Sacred Scripture, apostolic tradition, and the teachings of the early Church Fathers.

From the time of the apostles, Christians professed that the Eucharist was much more than ordinary bread and wine. Christ’s words at the Last Supper, “This is my body” (Matthew 26:26), were taken seriously by the early Christian community. Likewise, when Jesus declared that his flesh was true food and his blood true drink (John 6:55), the Church understood these words as revealing a profound mystery of communion with him.

This understanding can be found throughout the writings of the early Church Fathers. St. Ignatius of Antioch, writing in the early second century, identified the Eucharist with the flesh of Jesus Christ. St. Justin Martyr likewise explained that Christians did not receive the Eucharist as ordinary food and drink. These witnesses demonstrate that belief in Christ’s Eucharistic presence was not something invented during the Middle Ages. It was deeply rooted in the life and worship of the early Church.

However, as the centuries progressed, theologians began examining more closely how Christ was present in the Eucharist. Although questions concerning the sacrament had arisen earlier, one of the first major theological controversies over the manner of Christ’s Eucharistic presence emerged during the ninth century. At the center of this discussion were two monks from the monastery of Corbie: St. Paschasius Radbertus and Ratramnus.

Their disagreement would become an important chapter in the development of Eucharistic theology and would raise questions that continue to be discussed today.

St. Paschasius Radbertus and the Reality of Christ’s Presence

St. Paschasius Radbertus was a Benedictine monk who eventually became abbot of the monastery of Corbie in what is now France. He was a respected theologian whose writings contributed significantly to medieval discussions about the Eucharist. Around the year 831, he composed a work titled On the Body and Blood of the Lord, which explored the mystery of Christ’s presence in the sacrament.

Paschasius maintained that the Eucharist was truly the body and blood of Jesus Christ. For him, the Eucharist was not simply a religious symbol or an external reminder of the sacrifice of Christ. Rather, it was the means by which the faithful entered into intimate communion with the risen Lord.

His theology was rooted in the Incarnation. The same Jesus Christ who took on human flesh in the womb of the Blessed Virgin Mary, suffered on the cross, and rose from the dead is the Christ whom Catholics receive in Holy Communion. The Eucharist, therefore, is inseparable from the saving work of Christ.

This is an important distinction because Christianity is not a religion in which the spiritual and physical worlds are completely separated. God created the material world and declared it good. When humanity fell into sin, God did not abandon his creation. Instead, the eternal Word became flesh and dwelt among us (John 1:14).

Paschasius understood that this union between the divine and the human had profound implications for the sacraments. If God could take on human flesh to accomplish our salvation, why should it be difficult to believe that he could communicate his grace through material realities such as water, oil, bread, and wine?

The Eucharist was the greatest example of this sacramental reality because it was not merely an instrument of grace. It was Christ himself.

The Eucharist Unites Us to Christ

One of the most beautiful aspects of Paschasius’s Eucharistic theology is his emphasis on union with Christ. He understood that receiving the Eucharist was not simply an individual act of devotion. It was an encounter with the living Savior that transformed the person receiving him.

In discussing the relationship between Christ and those who receive the Eucharist, Paschasius drew upon the words of Jesus in John 6:57:

“As the living Father sent me, and I live because of the Father, so he who eats me will live because of me.”

This passage reveals something extraordinary about the Eucharist. Christ does not merely give us something that belongs to him. He gives us himself. Through this gift, we are drawn more deeply into communion with him and are strengthened to live according to his will.

Paschasius recognized that this communion was possible because Christ was truly present in the sacrament. The faithful receive the Lord who died and rose again, and through this encounter they participate more fully in the life of grace.

This understanding also reflects the teaching of St. Paul, who writes in 1 Corinthians 10:16 that the cup of blessing is a participation in the blood of Christ and the bread that we break is a participation in his body.

For Paschasius, these passages were not isolated statements. They formed part of a consistent biblical witness concerning the Eucharist. Christ gives himself to the Church, and through this gift the members of his mystical body are united more closely to their head.

This is precisely why the Eucharist remains so important to Catholic life. We do not approach the altar merely to remember someone who lived two thousand years ago. We approach the altar to encounter the same Lord who conquered sin and death.

Ratramnus and a Different Understanding of the Eucharist

Not everyone at Corbie agreed with the manner in which Paschasius explained the Eucharistic mystery. Another monk, Ratramnus, developed a different theological approach that emphasized the distinction between what is perceived by the senses and what is received through faith.

Ratramnus also wrote a work titled On the Body and Blood of the Lord, apparently in response to questions raised by King Charles the Bald. His treatment of the Eucharist differed from that of Paschasius, particularly in how he explained the relationship between the sacramental signs and the historical body of Christ.

Ratramnus argued that the Eucharistic elements remain bread and wine in their visible appearance and that Christ’s body and blood are received spiritually, through the mystery of faith. He used the language of figure and mystery to explain the sacrament.

At first glance, this language may sound similar to the symbolic interpretations of the Eucharist found among some Protestant communities today. However, we must be careful not to impose later theological debates upon a ninth-century monk.

Ratramnus did not simply teach that the Eucharist was an empty symbol or a memorial devoid of divine power. He affirmed that the faithful truly receive Christ’s body and blood in a sacramental and spiritual manner. His disagreement with Paschasius concerned how that presence should be understood and explained.

This distinction matters because historical theology requires us to examine what a person actually taught rather than interpreting every disagreement through the lens of later controversies.

Nevertheless, Ratramnus’s emphasis on the spiritual and figurative dimensions of the Eucharist created important questions. If the Eucharist is received spiritually, what is the relationship between that spiritual reality and the bread and wine upon the altar? How does the sacrament communicate the body and blood of Christ? What does it mean for Christ to be truly present when the senses continue to perceive bread and wine?

These were not insignificant questions. They concerned the very nature of sacramental theology.

Can Christ Be Present Both Sacramentally and Spiritually?

One of the difficulties in understanding this controversy is that modern readers often assume that something must be either physical or spiritual. If something is spiritual, we may conclude that it cannot also be real. Likewise, if something is described as a sign, we may assume that it cannot communicate the reality it signifies.

Catholic theology rejects this false division.

The sacraments are visible signs instituted by Christ that actually communicate the grace they signify. Baptism is not merely a symbolic washing. Through water and the Holy Spirit, a person is reborn in Christ. Likewise, the Eucharist is not merely an external representation of communion with Jesus. It is the sacrament in which Christ becomes truly present and gives himself to the faithful.

This does not mean that Christ is present in the Eucharist in the same manner that an ordinary physical object occupies space. The Church teaches that his presence is real and substantial, but sacramental. His body and blood are present under the appearances of bread and wine.

The distinction is important. When Catholics speak of the Real Presence, we are not claiming that the Eucharist becomes visibly identifiable human flesh under ordinary circumstances. Rather, through the power of Christ, the substance of bread and wine is changed into his body and blood while the appearances remain.

The Church would eventually articulate this mystery through the doctrine of transubstantiation, a term developed and refined centuries after the controversy at Corbie.

In this way, the ninth-century discussion contributed to a larger theological process. The Church did not invent a new Eucharistic faith, but gradually developed more precise language to explain the faith it had received.

The Danger of Separating the Material and Spiritual Worlds

The controversy between Paschasius and Ratramnus also provides an opportunity to examine a broader problem that continues to affect Christianity today. There is a temptation to separate the material world from the spiritual world so completely that the two seem unable to interact.

This tendency is especially problematic when discussing the sacraments.

Throughout Sacred Scripture, God uses material realities to accomplish his purposes. He forms Adam from the dust of the ground, speaks to Moses through a burning bush, commands the Israelites to mark their doorposts with the blood of the Passover lamb, and heals Naaman through washing in the Jordan River.

In the New Testament, this pattern continues. Christ heals the blind man using mud and water, touches the sick, and ultimately offers his own body upon the cross for the salvation of the world.

The Incarnation demonstrates that the material world is not an obstacle to divine grace. God can use his creation to communicate his presence and accomplish his will.

This sacramental worldview is fundamental to Catholic Christianity. The Church recognizes that God works through visible signs because human beings are both body and soul. We encounter the world through our senses, and God graciously meets us within that human experience.

A theology that reduces the sacraments to reminders or purely subjective expressions of faith risks diminishing this biblical understanding of God’s relationship with creation.

It would be historically inaccurate to blame Ratramnus for later philosophical movements such as humanism or materialism. Nevertheless, the questions raised by his writings provide an opportunity to reflect on the consequences of separating the spiritual and material dimensions of Christian worship.

The Catholic response is not to deny the importance of faith. Faith is essential for receiving the Eucharist fruitfully. Rather, the Church insists that the reality of Christ’s Eucharistic presence does not depend upon the personal belief of the individual receiving the sacrament.

Christ is truly present because of his promise and power, not because we make him present through our thoughts or feelings.

From the Ninth Century to the Doctrine of Transubstantiation

The discussion between Paschasius and Ratramnus did not immediately produce the precise theological definitions familiar to Catholics today. Instead, it became part of a much longer process of reflection upon the Eucharistic mystery.

In the eleventh century, another controversy emerged through the teachings of Berengar of Tours. His explanations of the Eucharist raised additional concerns about the relationship between sacramental signs and the reality of Christ’s body and blood.

These debates prompted theologians to clarify the Church’s understanding of Eucharistic presence. Over time, the language of substance and accidents became increasingly important in explaining how bread and wine could retain their sensory appearances while becoming the body and blood of Christ.

The Fourth Lateran Council in 1215 used the language of transubstantiation, and the Council of Trent later provided a more detailed explanation in response to the controversies of the Protestant Reformation.

The Catechism of the Catholic Church summarizes this teaching:

“By the consecration of the bread and wine there takes place a change of the whole substance of the bread into the substance of the body of Christ our Lord and of the whole substance of the wine into the substance of his blood” (CCC 1376).

This teaching preserves an essential truth that Paschasius sought to defend: the Eucharist is truly Jesus Christ.

The development of Eucharistic terminology should not be confused with the invention of Eucharistic doctrine. Christians believed in the reality of Christ’s Eucharistic presence long before the word transubstantiation became part of the Church’s theological vocabulary.

The terminology developed because the Church needed to explain more clearly what it had always professed in its worship and faith.

Why This Controversy Still Matters Today

It may be tempting to dismiss a theological disagreement between two ninth-century monks as something that has little relevance to modern Catholics. After all, more than a thousand years have passed since Paschasius and Ratramnus wrote their respective works.

However, the questions they explored remain remarkably relevant.

What do we believe happens during the consecration at Mass? Do we approach the Eucharist as an encounter with the living Christ, or has receiving Communion become something routine? Do we recognize that the sacraments are genuine encounters with God’s grace, or have we reduced them to religious ceremonies that simply remind us of spiritual truths?

These questions deserve serious consideration because our understanding of the Eucharist shapes the way we worship.

If the Eucharist is merely symbolic, then the Mass becomes primarily an act of remembrance. However, if the Eucharist is truly the body and blood of Christ, then every Mass brings us into sacramental communion with the sacrifice of Calvary and the risen Lord.

This is why the Catholic Church treats the Eucharist with such reverence. We genuflect before the tabernacle, adore Christ in the Blessed Sacrament, and prepare ourselves to receive Holy Communion worthily. These practices are not empty rituals. They flow from our conviction that Jesus Christ is truly present.

The Eucharist is also a call to transformation. Receiving Christ should change the way we live, treat others, forgive those who have wronged us, and respond to the needs of the poor. We cannot claim to be united with Christ in Holy Communion while refusing to allow his grace to transform our lives.

Paschasius understood this intimate connection between Eucharistic communion and Christian living. Christ gives himself to us so that we may live more fully in him.

Conclusion: The Eucharist Is an Encounter With the Living Christ

The first major medieval Eucharistic controversy reminds us that the Church has spent centuries contemplating the mystery of Christ’s presence in the Blessed Sacrament. Paschasius Radbertus and Ratramnus approached that mystery differently, and their writings contributed to the theological discussions that eventually produced more precise explanations of Eucharistic doctrine.

Yet the heart of the Catholic faith remains unchanged.

When we approach the altar and receive Holy Communion, we are not merely participating in a symbolic meal. We are receiving Jesus Christ, who gives himself completely for our salvation. The same Lord who walked the roads of Galilee, healed the sick, forgave sinners, died upon the cross, and rose triumphantly from the grave comes to us under the appearances of bread and wine.

There is something profoundly humbling about this reality. The Creator of the universe makes himself present in a manner that we can receive. He does so not because he needs anything from us, but because he desires communion with us.

The challenge for Catholics today is not simply to defend the doctrine of the Real Presence in theological discussions. It is to live as though we truly believe it.

The next time we approach the altar for Holy Communion, perhaps we should consider the words of Christ in John 6:57. We live because of him, and he gives himself to us so that his life may become the center of our own.

That is the beauty of the Eucharist. It is not merely something we believe. It is someone we encounter.

And that someone is Jesus Christ.

References

Catechism of the Catholic Church. (1997). §§ 1322–1419.

Council of Trent. (1551). Session XIII: Decree concerning the Most Holy Sacrament of the Eucharist.

Ignatius of Antioch. Letter to the Smyrnaeans, 6–7.

Justin Martyr. First Apology, 66.

Paschasius Radbertus. De corpore et sanguine Domini (On the Body and Blood of the Lord).

Pohle, J. (1911). St. Paschasius Radbertus. In The Catholic Encyclopedia (Vol. 11). Robert Appleton Company. https://www.newadvent.org/cathen/11518a.htm

Ratramnus of Corbie. De corpore et sanguine Domini (On the Body and Blood of the Lord).

Sacred Scripture: Matthew 26:26–28; John 1:14; John 6:51–58; 1 Corinthians 10:16–17; 1 Corinthians 11:23–29.

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