What did Saint Thomas Aquinas say about the Eucharist?

Unity through sacramental love

By Shawn Buckles

Discover how Thomas Aquinas delves into the Eucharist, revealing its essence through transubstantiation and marking it as a key to spiritual sustenance and a tribute to Christ's sacrifice.

Thomas Aquinas taught that in the Eucharist, bread and wine become the body and blood of Christ through transubstantiation. He believed it is the true presence of Christ, offered as a sacrament of faith, uniting believers with God and each other.

The Eucharist is the sacrament of love that surpasses all understanding.
Aquinas
The celebration of Holy Mass is as valuable as the death of Jesus on the cross.
Aquinas
By the consecration the transubstantiation of the bread and wine into the Body and Blood of Christ is brought about.
Aquinas

Summary

  • Saint Thomas Aquinas viewed the Eucharist as a true embodiment of Christ's body and blood through transubstantiation.
  • His works bridge reason and faith, enhancing the Church's doctrinal teachings on the Eucharist.
  • Aquinas' devotion is expressed in his liturgical contributions, underscoring the Eucharist's significance in worship and personal faith.

Aquinas mentions the Eucharist in the following books:

  • Summa Theologiae (1265-1274): Aquinas's most comprehensive work, discussing the nature of God, the ethical life, and the sacraments, including a detailed treatment of the Eucharist. It reflects his deep exploration of transubstantiation and its importance in Christian life.

  • Summa contra Gentiles (1259-1265): Aimed at explaining Christian faith to non-believers, this work also touches on the nature of the Eucharist, presenting it within the broader context of Christian doctrine and Aquinas's philosophical arguments.

  • Commentary on the Sentences of Peter Lombard (1252-1256): As Lombard's Sentences were the standard theology textbook of the time, Aquinas's commentary provides important insights into medieval theological debates, including those surrounding the Eucharist and its sacramental theology.

Life and Works of St. Thomas Aquinas

St. Thomas Aquinas was an influential theologian whose works remain a mainstay in Christian theology. His intellectual rigor and comprehensive approach to theology mark his enduring legacy in philosophy and religion.

Brief Biography

Born around 1225, St. Thomas Aquinas was educated at the Benedictine house in Naples where he was first exposed to the works of Aristotle which would heavily influence his theological approach. A member of the Dominican Order, Aquinas was a noted Dominican friar who dedicated his life to scholarly pursuits and teaching. He became one of the most important medieval scholars and theologians.

Summa Theologiae and Other Writings

Aquinas's magnum opus, the Summa Theologiae, is a seminal work in which he strove to describe the whole of Catholic doctrine through reason and faith. Divided into three parts, this work discusses God, ethical behavior, and the life of Christ, among other topics. Aquinas wrote numerous other theological texts, commentaries, and treatises, contributing significantly to Christian philosophy and the understanding of sacraments like the Eucharist within the church.

The Theological Concept of the Eucharist

In exploring St. Thomas Aquinas' perspective on the Eucharist, one encounters profound insights into its nature and significance. Aquinas' contribution connects the scriptural origins to a philosophical framework, grounding the Eucharist's meaning in both faith and reason.

Definition and Significance

The Eucharist, as articulated by St. Thomas Aquinas, is more than a symbolic act; it is a true sacrament that embodies the real presence of Jesus Christ. To Aquinas, the Eucharist is the 'body and blood' of Christ under the appearances of bread and wine, a central tenet to eucharistic theology. This sacrament is significant as it stands as a testament to Christ's Passion and a source of spiritual nourishment for believers.

Biblical Foundations

Aquinas grounds the Eucharist in Biblical foundations, drawing from Old Testament prefigurations and Christ's Last Supper narrative. He sees Biblical figures and events, such as the manna from heaven and the Passover, as foreshadowing the Eucharist, a view evident in the Corpus Christi liturgy's interpretation of these scriptures. In the New Testament, particularly the synoptic Gospels and Pauline letters, Aquinas finds direct basis for the Eucharistic practice.

Aquinas' Philosophical Exposition

Through his philosophical exposition, Aquinas offers clarity to the mystery of the Eucharist. He employs Aristotelian concepts to explain how the substance of bread and wine becomes the body and blood of Christ, a process known as transubstantiation. This philosophical approach helps elucidate complex theological ideas about the Eucharist being both a physical and spiritual food, fortifying the faithful's relationship with God. Aquinas' detailed analysis becomes a bridge linking the scriptural and doctrinal aspects to an intelligible reality, thereby enhancing the understanding of the Eucharist's sacredness.

The Doctrine of Transubstantiation

Saint Thomas Aquinas's articulation of the Eucharist centers on the transformative process known as transubstantiation. This doctrine explains how the bread and wine become the body and blood of Jesus Christ, while their appearances, or 'accidents', remain unchanged.

Philosophical Underpinnings

Aquinas integrates Aristotelian philosophy to clarify how transubstantiation occurs. He posits that the substance of bread and wine undergo a fundamental change, becoming the body and blood of Christ. Despite this profound transformation, the 'accidents'—qualities perceivable by the senses—do not alter. This synthesis of philosophy and theology aims to elaborate on the mystery of the Eucharist without diminishing its sacramental significance.

Distinction Between Substance and Accidents

The distinction between 'substance' and 'accidents' is vital to understanding Aquinas's view. 'Substance' refers to the bread and wine's inherent essence, which, according to Aquinas, becomes the real presence of Christ in the Eucharist. Conversely, 'accidents' are the properties that remain perceptible, such as taste and appearance. Thus, while the 'accidents' stay the same, it is the 'substance' that undergoes the divine change during the Eucharist.

Sacramental Participation and the Real Presence

Saint Thomas Aquinas's theological exploration into the Eucharist brings forward the profound notion of Christ being truly present in the sacrament. His works delve deeply into the metaphysical aspects of what is considered by the Catholic Church to be the ‘source and summit’ of the Christian life.

Understanding Real Presence

Real presence refers to the belief that Jesus Christ is present in the Eucharist—not symbolically or metaphorically, but actually and truly. Thomas Aquinas articulated this by asserting that while the appearances of bread and wine remain, their substance is changed into the Body and Blood of Christ, a process known as Transubstantiation. This understanding is rooted in the notion that what the senses perceive—taste, touch, and sight—are the 'accidents', and though they appear unchanged, the 'substance' of the elements is transformed into the very Body and Blood of Christ.

Role of Faith in Eucharistic Participation

Faith plays an indispensable role in participating in the Eucharist. For Aquinas, it is through faith that one acknowledges and accepts the mystery of the Real Presence. Communion is not only an act of personal faith but a communal affirmation of the Church's belief in the sacrament as the actual presence of Christ. This shared belief unites the participants with the Body of Christ and with one another, transcending the empirical experience governed by the senses.

Liturgical and Devotional Practices

St. Thomas Aquinas made significant contributions to the Church's understanding of the Eucharist, particularly in how it's celebrated within the Mass and venerated through various devotional practices.

The Mass and Its Components

St. Thomas viewed the Mass as a re-presentation of the Last Supper and Christ's sacrifice, with its components deeply rooted in sacred meaning. He stressed the importance of the Liturgy, where the Church expresses her faith through actions and symbols. In his theological works, such as Summa Theologiae, he elaborates on the liturgical celebration, emphasizing the significance of the consecrated host, referred to as the Blessed Sacrament, which is the body of Christ given to the faithful during Communion.

Eucharistic Adoration and Feast

Aquinas held Eucharistic adoration in high regard. This devotional practice centers on the adoration of the Blessed Sacrament outside of the Mass. He fostered a deep appreciation for the Eucharist as spiritual food and articulated this in various hymns and prayers for the Corpus Christi Liturgy, reinforcing the idea that the Eucharist is central to the life of the Church and her members. Commemorated in the feast of Corpus Christi, the Church celebrates the mystery of the body and blood of Christ, a tradition that Aquinas' works have greatly shaped, underscoring the call to charity and unity among believers.

Influence on Worship and Church Tradition

St. Thomas Aquinas's thoughts on the Eucharist have deeply influenced how the Catholic Church engages in worship and understands its traditions.

Impact on Prayer and Hymnody

St. Thomas Aquinas composed several hymns that are integral to the church's liturgical practice, especially with regard to the Eucharist. Pange Lingua and Tantum Ergo are two such hymns that have shaped the liturgy of the Feast of Corpus Christi, accentuating the worship and adoration of the Eucharist. The hymn Panis Angelicus has become a central piece during the celebration of the Mass, often sung during communion. Adoro Te Devote is another hymn by Aquinas that expresses deep Eucharistic devotion and is frequently used in prayer and adoration.

Eucharistic Miracles and Church Teaching

Aquinas's theological work contributes to the Church's teachings regarding Eucharistic miracles. These miracles serve as signs that reinforce faith in the true presence of Christ in the Eucharist, a fundamental aspect of worship. His theological perspective provides a basis for the church's interpretation of these events. The Church upholds Aquinas's teachings on the Eucharist in its doctrine, using his explanation of transubstantiation to educate believers about the mystery and miracle of the bread and wine becoming the Body and Blood of Christ during the Mass.

Personal Spiritual Impact of the Eucharist

Saint Thomas Aquinas emphasized the profound spiritual effects that the Eucharist has on an individual's inner life. He saw it as a vital sustenance for the soul, much as food is for the body.

Eucharist as a Source of Spiritual Life

The Eucharist, for Aquinas, is spiritual food that nourishes and sustains one's spiritual life. This sacrament is a foretaste of heavenly fellowship that elevates the soul through divine grace. The act of receiving the Eucharist is more than just a ritual; it becomes an encounter with love itself, which fosters a deeper relationship with God.

Transformation and Conversion

Aquinas believed in the Eucharist's power to bring about transformation and conversion. It compels believers to turn inwards for reflection and outwards in acts of adoration. Such a transformative experience encourages a turning away from sin and a growing into virtue, which mirrors the Paschal mystery of Christ's death and resurrection.

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