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Doctrine Category

The Eucharist

37 claims
Doctrine All Apostolic Succession Christology church Ecclesiology Eschatology existence-of-god Grace & Free Will grace-justification Mariology moral-theology natural-law Petrine Ministry Pneumatology Prayer & Devotion Purgatory salvation Scripture & Tradition Soteriology The Eucharist The Priesthood The Resurrection The Sacraments The Trinity
37 claims in this doctrine
The Eucharist
ST III, Q73, A3: Whether the Eucharist Is Necessary for Salvation
Aquinas distinguishes between necessity of precept and necessity of means. The Eucharist is necessary for salvation by precept (Christ commands us to…
Historically Verified
The Eucharist
ST III, Q77, A1: Whether the Accidents Remain in This Sacrament Without a Subject
Aquinas addresses one of the most philosophically challenging aspects of Transubstantiation: after the substance of bread and wine have been changed into…
Historically Verified
The Eucharist
ST III, Q78, A1: Whether the Form of This Sacrament Is “This Is My Body”
Aquinas argues that the words of consecration — “This is My Body” — are the form of the Eucharist. These words, spoken…
Historically Verified
The Eucharist
ST III, Q73, A1: Whether the Eucharist Is a Sacrament
Aquinas demonstrates that the Eucharist is truly a sacrament — indeed the greatest of all sacraments. It fulfills all three conditions of…
Historically Verified
The Eucharist
ST III, Q75, A1: Whether the Body of Christ Is in This Sacrament in Very Truth
Aquinas demonstrates that Christ’s body is truly, really, and substantially present in the Eucharist — not merely symbolically or figuratively.
Historically Verified
The Eucharist
ST III, Q75, A2: Whether the Substance of Bread Remains After Consecration
Aquinas demonstrates that after consecration, the substance of bread does not remain — only the accidents (appearances) of bread persist. This is…
Historically Verified
The Eucharist
The Real Presence
Historically Verified
The Eucharist
Chrysostom teaches that the Eucharist is the same sacrifice as Calvary, not a different one
Historically Verified
The Eucharist
Irenaeus teaches that the Eucharist is a firstfruit offered to God from his own creation
Historically Verified
The Eucharist
Cyprian teaches that the cup must be mixed with water and wine at the Eucharist
Historically Verified
Primary Sources

Patristic Texts Addressing The Eucharist

These texts from the Fideograph library contain annotated passages directly bearing on this doctrine. Each passage is tagged so you can filter to the relevant chapters immediately.

c. AD 107 Intermediate
Ignatius of Antioch
Ignatius of Antioch — Letter to the Smyrnaeans
Contains the first use of Catholic Church in Christian literature, the clearest early statement on the Real Presence, and the most concentrated early treatment of episcopal authority — written en route to martyrdom, c. AD 107.
4 chapters on The Eucharist
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c. AD 350 Intermediate
Cyril of Jerusalem
Cyril of Jerusalem — Mystagogical Catecheses
Five post-baptismal lectures delivered at the Holy Sepulchre c. AD 350 — the most systematic early treatment of the sacraments, including the clearest patristic account of Real Presence and the Epiclesis.
6 chapters on The Eucharist
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c. AD 50–120 Introductory
Anonymous (Apostolic)
The Didache (Teaching of the Twelve Apostles)
The oldest surviving Christian catechism outside the New Testament — containing the earliest extra-biblical instructions for Baptism, the Eucharist, fasting, and church order. c. AD 50–120.
3 chapters on The Eucharist
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