As someone who moves frequently in Protestant and evangelical academic circles while remaining a practicing Catholic, I often encounter the assumption that certain Catholic doctrines lack biblical grounding. The papacy and Marian doctrines are common points of tension. But more than any other issue, the Eucharist consistently surfaces. The Catholic claim that the bread and wine become a real participation in Christ’s Body and Blood is often dismissed as a medieval philosophical overlay.
Yet when we turn to St. Paul—particularly 1 Corinthians 10:14–22—we encounter something that demands serious exegetical attention. Long before the scholastic articulation of transubstantiation, Paul speaks in terms that are irreducibly sacrificial, covenantal, and participatory. The metaphysical dimension is not a medieval imposition; it is already implicit in the apostolic argument.
1. Paul’s Sacrificial Framework
In 1 Corinthians 10:16, Paul writes:
The cup of blessing that we bless, is it not a participation (koinōnia) in the blood of Christ? The bread that we break, is it not a participation (koinōnia) in the body of Christ?
The key term, koinōnia, means sharing, communion, participation. It does not denote mere symbolism. Gordon Fee, though writing from a Protestant perspective, acknowledges that koinōnia here conveys “real participation in the blood and body of Christ” (Fee, 1987, p. 467). Likewise, Anthony Thiselton notes that the term implies “a real sharing in the benefits of Christ’s death” (Thiselton, 2000, pp. 763–764).
Paul strengthens this claim in verse 21: “You cannot partake (metechein) of the table of the Lord and the table of demons.” Metechein similarly conveys active participation or sharing. The language is covenantal and relational, not memorialistic.
Paul’s argument assumes that participation in sacrificial meals creates real fellowship with the spiritual power behind the sacrifice. This is made explicit in verse 20: “What pagans sacrifice, they offer to demons and not to God.”
Paul cites Deuteronomy 32:17 from the Septuagint. His logic unfolds through analogy:
- Israel eats sacrificial meat → becomes “partners in the altar” (1 Cor. 10:18, NRSV)
- Pagans eat sacrificial meat → commune with demons
- Christians eat the bread and drink the cup → commune with Christ
The parallel only works if the Eucharist involves genuine participation. If pagan sacrifice establishes real spiritual communion, Paul’s warning makes no sense unless the Eucharist does likewise.
2. Against a Purely Symbolic Reading
One common objection is that Paul is describing a symbolic act of remembrance. Yet Paul nowhere uses symbolic language (symbolon) in this passage. Instead, he uses the language of sacrificial participation.
Richard Hays observes that Paul’s rhetoric assumes “that cultic meals involve genuine participation in the deity honored” (Hays, 1997, p. 170). If so, the Eucharist cannot be reduced to psychological recollection.
Further, in 1 Corinthians 11:27, Paul warns:
Whoever eats the bread or drinks the cup of the Lord in an unworthy manner will be guilty of the body and blood of the Lord.
To be guilty of the “body and blood” presumes objective reality. John Chrysostom, preaching on this text in the fourth century, insisted that Paul’s words demonstrate that “what is in the cup is that which flowed from His side” (PG 61:229). The Early Church did not treat the Eucharist as bare symbolism.
3. The Table as Altar
Paul’s use of “table” (trapeza) is significant. In Greco-Roman sacrificial contexts, the table functioned as an altar-fellowship (Smith, 2003, p. 198–201). To dine at a deity’s table meant entering into covenantal communion with that god. When Paul contrasts the “table of the Lord” and the “table of demons,” he presumes that both involve supernatural presence.
The Catechism of the Catholic Church, drawing on this Pauline theology, teaches: “The Eucharist is ‘the source and summit of the Christian life’” (CCC 1324). And further: “In the most blessed sacrament of the Eucharist the body and blood, together with the soul and divinity, of our Lord Jesus Christ…are truly, really, and substantially contained” (CCC 1374).
This language does not invent a new reality; it clarifies the one Paul assumes.
4. From Participation to Doctrine
The Church’s articulation of transubstantiation at the Fourth Lateran Council (1215) and the Council of Trent (1551) was not a departure from Scripture but a development prompted by controversy. When symbolic reductions threatened the apostolic faith, the Church provided metaphysical precision.
Thomas Aquinas later explained that Christ is present “not only as in a sign, but in very truth” (ST III, q. 75, a. 1). Yet Aquinas himself grounded this teaching in Scripture, including 1 Corinthians 10 and 11.
Even Protestant exegetes concede that Paul’s language cannot be dismissed as mere metaphor. C.K. Barrett notes that Paul “speaks of a real participation in Christ” (Barrett, 1968, p. 232). While Barrett does not adopt Catholic metaphysics, he recognizes the depth of Paul’s realism.
5. A Serious Challenge
None of these forces immediately assents to transubstantiation. But it does compel serious engagement.
Paul’s argument presumes:
- Sacrificial participation is real.
- Communion establishes fellowship with spiritual powers.
- The Eucharist creates covenantal union with Christ.
- The Lord’s Table is not spiritually neutral.
If demons can be encountered at a pagan altar, surely Christ can be encountered at His own.
The Catholic claim is not that Paul gives us a scholastic explanation. It is that he gives us a sacramental ontology—one in which matter becomes the vehicle of divine presence. At minimum, 1 Corinthians 10 requires acknowledgment that the Eucharist involves real supernatural participation. Reducing it to a mere symbol weakens Paul’s warning and flattens his sacrificial logic.
For those who cherish Paul and the authority of Scripture, this passage deserves more than dismissal. It demands careful, reverent consideration. The Apostle does not describe mere remembrance; he describes communion. And communion, in Paul’s theology, is never merely symbolic.
Photo by Josh Applegate on Unsplash
