Does the Bible Teach the Real Presence?

The Protestant Objection: “Scripture Never Says It Is Truly the Body”

Since the sixteenth-century Reformation, part of Protestantism has argued that the Eucharistic texts of the Bible must be read symbolically — but in very different degrees. For Zwingli, “is” means “signifies”: the Supper is a simple commemorative meal, a sign of faith. Calvin, for his part, expressly refuses the empty sign: he teaches a true participation in the body and blood of Christ, communicated to believers by the Spirit and received by faith (Institutes of the Christian Religion, IV, XVII, §§ 5-7 and 10).^[1] But for him Christ’s body remains in heaven, united to us by the sole power of the Spirit; the bread remains bread, and the Eucharist is neither a sacrifice nor an object of adoration: it is on these precise points — and not on a supposed memorialism of Calvin — that the Catholic faith separates from him. The argument common to symbolist readings can be summarized in this way: Jesus often speaks in images (“I am the door,” “I am the vine”); when he says “this is my body,” he would mean “this represents my body”; and when he commands “do this in remembrance of me,” he would institute a simple commemorative meal.^[2]

This reading rests above all on one verse, John 6:63 — “It is the spirit that gives life; the flesh profits nothing” — interpreted as Jesus' own disavowal of any fleshly interpretation of his discourse. This is the objection we will treat at greatest length, because it is the pivot of the whole symbolic reading.

What the Catholic Church Claims to Read in Scripture

For the Catholic Church, Scripture does not vaguely suggest the Real Presence: it teaches it. The Catechism states, drawing directly on the Council of Trent, that in the Eucharist are “contained truly, really and substantially the Body and Blood together with the soul and divinity of our Lord Jesus Christ.”^[3] And the same Catechism grounds this faith not first in a conciliar decision, but in the words of Christ himself — “because Christ, our Redeemer, said that what he offered under the species of bread was truly his Body” — reported by the evangelists and by Paul.^[4]

The issue is therefore to know what the texts actually say. This article argues that taking these words in the realist sense — what is called the “realist reading,” as opposed to the reading that sees in them only an image — is not a Catholic overinterpretation, but the most natural, most ancient and most coherent reading of the biblical corpus.

A Debate About Exegesis as Much as Doctrine

This must be stressed from the start: the question is not settled by lining up quotations from councils. A Protestant who contests the authority of the magisterium will not be convinced by Trent; he must be brought to the text. That is why this article privileges scriptural analysis — language, Jewish context, reactions of hearers — and uses the Fathers and councils only as witnesses to the way the primitive Church read these same verses. For the strictly dogmatic development (transubstantiation, the definitions of Trent, the differences between Luther, Zwingli and Calvin), see The Eucharistic Real Presence.

The sixth chapter of the Gospel according to Saint John is by far the most developed New Testament text on the Bread of Life. It forms a whole: a narrative (the multiplication of the loaves), a dialogue that rises in intensity, and a final crisis in which disciples abandon Jesus. It is precisely this dramatic progression that makes the symbolic reading difficult to maintain to the end.

The Context: From the Multiplication of the Loaves to the Manna

The discourse opens with a sign: Jesus multiplies five loaves for an immense crowd and feeds everyone “as much as they wanted.”^[5] The next day, the crowd joins him at Capernaum, still seeking material bread. Jesus then shifts their gaze toward another bread. He summons the memory of the manna in the desert — the bread that came down from heaven in the time of Moses^[6] — in order to announce a greater gift:

“It was not Moses who gave you the bread from heaven; my Father gives you the true bread from heaven. […] I am the bread of life.” — Jesus, Gospel according to Saint John 6:32-35^[7]

Up to this point, the reading could remain metaphorical: “come to me,” “believe in me,” “never hunger.” The bread is faith, wisdom, the word. But from verse 51 onward, the register changes abruptly, and this is the entire issue of the passage.

“The Bread That I Will Give Is My Flesh” (John 6:51)

The turning point is clear:

“I am the living bread that came down from heaven. Whoever eats this bread will live forever; and the bread that I will give is my flesh for the life of the world.” — Jesus, Gospel according to Saint John 6:51^[8]

Jesus no longer says only “I am the bread”: he identifies this bread with his flesh (Greek sarx) and specifies that it will be “given for the life of the world” — a formula that directly anticipates the sacrifice of the Cross and the formula of institution (“my body, given for you”). The bread of which he speaks is no longer a symbol of faith: it is his flesh handed over.

“How Can He Give Us His Flesh to Eat?”: Jesus Does Not Correct Them

The reaction of his hearers is immediate and scandalized — and it is decisive for interpretation:

“The Jews then disputed among themselves, saying, ‘How can this man give us his flesh to eat?’” — Gospel according to Saint John 6:52^[9]

Here lies one of the strongest arguments for the realist reading. The hearers understand Jesus literally — really eating his flesh — and they are scandalized. Yet throughout the Gospel, when an interlocutor misunderstands an image of Jesus, the evangelist signals the misunderstanding and Jesus corrects it: Nicodemus thinks one must physically re-enter the mother's womb, and Jesus explains that he speaks of a birth “of water and Spirit” (John 3); the Samaritan woman thinks he is speaking of well water, and Jesus specifies that he means water “welling up to eternal life” (John 4).^[10]

Before the Eucharistic scandal, Jesus does exactly the opposite: far from saying “you misunderstood me, I was speaking figuratively,” he reinforces the realism, under solemn oath:

“Amen, amen, I say to you, unless you eat the flesh of the Son of Man and drink his blood, you have no life in you. Whoever eats my flesh and drinks my blood has eternal life […]. For my flesh is true food, and my blood is true drink.” — Jesus, Gospel according to Saint John 6:53-55^[11]

The addition of blood is crucial. To drink blood was, for a Jew, a major transgression of the Law.^[12] By deliberately introducing it, Jesus closes the door to every softening: he knows he is intensifying the scandal, and he does it anyway.

The Greek Verb trōgō (“to Chew”): Intensification at the Moment of Scandal

A linguistic detail, invisible in many translations, confirms this intensification. At the beginning of the discourse, Jesus uses the ordinary Greek verb for “to eat”: phagein (a form associated with esthiō). But from verse 54 to the end of the discourse, the evangelist has Jesus shift to another verb: trōgō.^[13]

Trōgō is not a neutral synonym: it is a concrete term, meaning “to chew, crunch” — the act of grinding food — where the ordinary verb “to eat” can also mean “assimilate, receive.” Lexicons indeed attest the general use “to eat” for trōgō: it is therefore not a grammatical impossibility of metaphor, but a contextual intensification that argues for realism. For it is at the very moment his hearers protest that Jesus chooses the most concrete verb:

“Whoever eats my flesh and drinks my blood remains in me and I in him. […] Whoever eats this bread will live forever.” — Gospel according to Saint John 6:56-58 (AELF; in Greek, the verb is trōgō, “to chew”)^[14]

The meaning is clear: if Jesus had wanted to correct a misunderstanding, he would have softened his vocabulary. He does the opposite — and verse 58 juxtaposes the two verbs: the fathers “ate” (ephagon) the manna, while he who “chews” (trōgōn) this bread will live forever. Jesus makes his word so realistic that it becomes unbearable for his unbelieving hearers.

“Many of His Disciples Turned Back” (John 6:66)

This is where John 6 takes on striking relief. The scandal is no longer that of the hostile crowd: it is the disciples themselves who fall away.

“Many of his disciples, when they heard it, said, ‘This saying is hard; who can accept it?’ […] As a result of this, many of his disciples returned to their former way of life and no longer accompanied him.” — Gospel according to Saint John 6:60, 66^[15]

This is, in the Gospels, one of the only cases thus reported in which disciples abandon Jesus because of a doctrinal point — not because of persecution, not because of a moral demand, but because of an affirmation they judge unacceptable. And Jesus' reaction is still more telling: he does not call them back, does not correct them, does not say “wait, you have taken literally what was only an image.” He lets them go, and turns to the Twelve: “Do you also want to leave?”^[16]

A teacher who sees his disciples leave over a simple misunderstanding of vocabulary and does not clear it up would betray his mission. That Jesus lets them go shows that they had grasped the essential — the real gift of his flesh — and that this very thing was what they refused: no explanation of the type “it was only an image” was possible. Their error concerned the mode of the gift, which they imagined carnally, as flesh to be carved up. This is exactly the error described by Saint Cyril of Jerusalem: not having heard the word “in a spiritual sense,” the hearers “supposed that he was inviting them to eat flesh” (Mystagogic Catecheses IV, 4).^[17]

Peter's answer, on behalf of the Twelve, sets the tone for the Eucharistic faith of the whole Church:

“Lord, to whom shall we go? You have the words of eternal life. We have come to believe and are convinced that you are the Holy One of God.” — Saint Peter, Gospel according to Saint John 6:68-69^[18]

The Catechism reads this scene as a figure of all history: “The Eucharist and the Cross are stumbling blocks,” and the question “Do you also want to leave?” “echoes through the ages.”^[19]

The discourse at Capernaum announces the gift; the Last Supper accomplishes it. On the evening of Holy Thursday, Jesus takes bread, blesses it, breaks it, and pronounces the words the whole Church will repeat at every Mass.

Four Converging Accounts

The institution of the Eucharist is one of the best-attested events in the New Testament: it is reported four times, by three evangelists and by Saint Paul. The following table compares the formulas. It will be seen that the variations concern details (order, memorial, mention of the Covenant), while the core — the body given, the blood of the Covenant poured out — remains the same in all four accounts: Matthew and Mark write “this is my blood,” Luke and Paul “the new Covenant in my blood.” Convergence of meaning, therefore, not literal identity of wording.

The convergence of four sources on an identical core, at a very early date, is an argument for historical authenticity: this is not a legend slowly formed, but a tradition fixed from the first Christian generation.^[20]

“Is,” Not “Means”: The Force of the Verb

The heart of the debate lies in one word: “is.” Jesus says “this is my body,” not “this represents my body.” The Reformers themselves did not agree on this point — proof that the text does not bend so easily to the symbolic reading (see below, the Colloquy of Marburg). It is sometimes objected that Jesus' original phrase, in Aramaic, would have been rendered without the verb “to be”: “this, my body.” But Semitic languages commonly form identification by a simple nominal sentence, without the verb “to be”: this absence is not a gap, and it supplies no verb meaning “to represent.”^[21] This point of grammar, by itself, decides nothing — any more than the Greek copula estin (the verb “is”) suffices, by itself, to exclude a metaphor, as the figurative “I am” sayings of the same Gospel show. What tips the balance is the context proper to the four accounts: all use estin, never a verb of representation, and all accompany it with the language of sacrificial gift — body given, blood poured out. The evangelists and Paul therefore received the word as an affirmation of identity, not as a comparison.

“Given for You,” “Poured Out for Many”: Sacrificial Language

The formulas of institution are not only realist; they are sacrificial. The body is “given” (Luke), “handed over”; the blood is “poured out for many” (Matthew, Mark), “the blood of the Covenant” — a direct echo of the blood of the Covenant sprinkled by Moses at Sinai (Exodus 24:8). A symbol is not handed over and not poured out “for the forgiveness of sins.” The vocabulary supposes a reality offered, which naturally links the Real Presence to the sacrificial character of the Mass, developed in Why Is the Eucharist a Sacrifice?.

“Do This in Remembrance of Me”: Memorial Does Not Deny Presence

Luke and Paul add the command: “Do this in memory of me.”^[22][23] Symbolic readers see in this the proof that it is only a remembrance. But the biblical word for memorial (Hebrew zikkaron, Greek anamnesis) never has the weak sense of a purely mental recollection. In Jewish liturgy — especially the Passover — to memorialize an event is to make it present and actual for the generation that celebrates it.^[24] To “remember” the body handed over is therefore not to call it to mind: it is to make it present. The memorial, far from contradicting the Real Presence, thus leaves it full room — without proving it by itself: the same vocabulary of “reminder” serves elsewhere for something quite different (“these sacrifices bring a yearly reminder of sins,” Heb 10:3), and the Catechism specifies that the memorial takes on a new meaning in the New Testament (CCC 1362-1364).^[25] It is the institution — “this is my body” — and the whole scriptural dossier that ground the Catholic faith, not the single word of memorial.

It is often forgotten that the earliest Christian text on the Eucharist is not a Gospel, but the First Letter to the Corinthians, written by Saint Paul around the year 54 — more than ten years before Mark's Gospel, according to the most common datings. Yet Paul is, of all New Testament authors, the most explicitly realist.

“Communion in the Body and Blood of Christ” (1 Corinthians 10:16)

To turn the Corinthians away from idolatrous banquets, Paul argues from the Eucharist:

“The cup of blessing that we bless, is it not a participation in the blood of Christ? The bread that we break, is it not a participation in the body of Christ?” — Saint Paul, First Letter to the Corinthians 10:16^[26]

The Greek word translated as “communion” or “participation” is koinonia: real participation, sharing, association. For Paul's argument to hold — do not participate in the sacrifices of idols, because you already participate in something real — the cup and the bread must be an effective participation in the Body and Blood of Christ, not the evocation of someone absent.

“Guilty of the Body and Blood”: Eating Unworthily (1 Corinthians 11:27-29)

The most decisive argument comes one chapter later. Paul rebukes the Corinthians who receive Communion without respect:

“Whoever, therefore, eats the bread or drinks the cup of the Lord in an unworthy manner will have to answer for the body and blood of the Lord. […] Anyone who eats and drinks without discerning the body, eats and drinks judgment on himself.” — Saint Paul, First Letter to the Corinthians 11:27-29^[27]

This passage is, by itself, almost decisive. Taken in isolation, the formula does not suffice to dismiss the “sign” objection: one can offend a person by mistreating what represents them — Saint Paul himself writes that by sinning against brethren, it is “against Christ” that one sins (1 Cor 8:12). But here, the context proper to 1 Corinthians 10-11 brings more: Paul grounds his warning in a real participation (koinōnía) in the body and blood (1 Cor 10:16), he requires “discerning the body” (11:29), and he attaches to unworthiness an effective judgment — many, he says, are “sick” and “infirm,” and “a number have fallen asleep in death” (11:30). If the Eucharist were only an empty sign, this whole set would remain incomprehensible and disproportionate: its coherence is explained only if the bread and cup are truly the Body and Blood of the Lord.

“Without Discerning the Body”: A Rebuke That Supposes a Presence

Paul finally requires the communicant to “discern the body.” The verb (diakrino) means to distinguish, to recognize the real nature of what is received. To eat without discerning the body is to treat the Eucharist as ordinary food — the very fault being punished. Here again, the reasoning makes sense only if there is a body to discern.

Eucharistic realism is not a forced move by the New Testament: it is rooted in a long preparation in the Old. Biblical scholar Brant Pitre has shown that Jesus' words at the Supper become fully intelligible only against the background of Jewish expectations surrounding three realities: the manna of the Messiah, the Bread of the Presence and the Passover.^[28] Five principal figures deserve attention.

The Manna in the Desert

Jesus explicitly links his discourse to the manna, that “bread from heaven” on which Israel lived for forty years (Exodus 16).^[29] But he marks a superiority: “your ancestors ate the manna, but they died; […] whoever eats this bread will live forever” (John 6:49-58). The manna nourished the body for a time; the true bread from heaven, his flesh, gives eternal life. Ancient Jewish traditions moreover expected the return of the manna in messianic times — an expectation Jesus declares fulfilled in himself.^[30]

The Bread of the Presence

Less well known, the Bread of the Presence (or showbread) is one of the most striking figures. By God's command, twelve cakes of fine flour — the “loaves” of the Presence — were to be placed “continually” on the golden table of the sanctuary, “before” the Lord^[31] — hence their Hebrew name, lehem ha-panim, literally “bread of the Face” or “of the Presence.” They were an “everlasting covenant,” a sign of God's presence among his people, and only the priests could eat them “in a holy place,” as a “most holy” portion.^[32] A bread linked to the divine Presence, offered and then eaten by priests in the sanctuary: the Eucharistic prefiguration is striking, and is one of the keys emphasized by Pitre.^[33]

Melchizedek: Bread and Wine

Already in Genesis, the mysterious Melchizedek, “king of Salem” and “priest of God Most High,” welcomes Abraham by offering not an animal, but “bread and wine.”^[34] The Letter to the Hebrews makes this priesthood according to the order of Melchizedek the figure of Christ's priesthood. The offering of bread and wine by this enigmatic priest has always been read by Christian tradition as an announcement of the Eucharistic offering.

The Passover Lamb That Must Be Eaten

The Jewish Passover did not consist only in slaughtering the lamb: it had to be eaten. “They shall eat its flesh that night, roasted over the fire”.^[35] The sacrifice was completed only when the victim was eaten. Now Jesus institutes the Eucharist during a Passover meal, presenting himself as the true Lamb whose flesh must be eaten and whose blood is applied. The parallel explains why Jesus, in John 6, insists so strongly on eating his flesh: he is fulfilling the Passover logic.^[36]

Malachi: “A Pure Offering” in Every Place

Finally, the last of the prophets announces a new, universal worship:

“From the rising of the sun to its setting, my name is great among the nations; and in every place […] a pure offering is brought, for my name is great among the nations, says the Lord of hosts.” — Malachi 1:11^[37]

A “pure offering” offered “in every place” (and no longer only in the Temple of Jerusalem): Christian tradition, already in the Didache (end of the first century), recognized here the Eucharist celebrated throughout the world. A merely symbolic commemoration would not be called an offering.

We now come to the apologetic heart of the article. Protestant objections to Eucharistic realism are, in substance, six. None withstands close examination of the text.

Objection 1 — “It Is the Spirit That Gives Life; the Flesh Profits Nothing” (John 6:63)

This is the major objection. At the end of the discourse, Jesus says: “It is the spirit that gives life, while the flesh is of no avail. The words I have spoken to you are spirit and life.”^[38] The symbolic reader concludes: Jesus himself disavows the fleshly reading; everything was spiritual, therefore figurative.

Answer. This reading runs into an internal contradiction. If “the flesh profits nothing” meant “my Eucharistic flesh profits nothing,” Jesus would contradict himself within a few lines: he has just repeated five times that his flesh “is true food” and gives “eternal life.” One cannot say in the same breath “my flesh gives eternal life” and “my flesh profits nothing.”

The key is the classic biblical opposition between “flesh” and “spirit.” In the vocabulary of Saint Paul as of Saint John, “flesh” in the pejorative sense designates man left to his merely natural powers, closed to God; “spirit” designates man open to the action of the Holy Spirit.^[39] “The flesh profits nothing” therefore does not target the flesh of Christ, but the fleshly way of understanding — that of hearers imagining crude cannibalism, a corpse to be cut up. Jesus warns: without the Spirit, you will never understand this gift; you will only imagine butchery. His flesh, vivified by the Spirit and glorified, has nothing to do with a corpse — but it remains really given. Moreover, verse 62 prepares this answer: Jesus evokes “the Son of Man ascending to where he was before,” that is, his glorious Ascension: it is the glorified flesh, animated by the Spirit, that will be given as food, not dead flesh delivered to the tooth.^[40]

In short, John 6:63 does not disavow realism: it gives its key of interpretation — it must be received “in the Spirit,” not “according to the flesh.”

Objection 2 — “Do This in Remembrance of Me”: Therefore a Mere Memorial

The objection. Since Jesus speaks of memory, the Supper would be a commemorative rite, like remembering a deceased person.

Answer. As seen above, the biblical memorial (anamnesis, zikkaron) is not a mental recollection but an actualization — the past event is made present and effective for those who celebrate, as Passover made the liberation from Egypt present.^[41] Furthermore, the conclusion does not follow: even if the Eucharist is a memorial (it is), that says nothing about the nature of what is eaten. Jesus says two things: “this is my body” and “do this in remembrance of me.” The second command does not abolish the first. One can very well remember by making really present — that is precisely the Catholic faith.

Objection 3 — “I Am the Door,” “I Am the Vine”: Therefore “This Is My Body” Is a Metaphor

The objection. Jesus often uses images: “I am the door,”^[42] “I am the vine,”^[43] “I am the way.” “This is my body” would be of the same order.

Answer. The comparison fails, but not for the reason usually thought. It is false that the images of Jesus are always understood at once and without clash: after the image of the door and the shepherd, “they did not understand what he was talking about” (John 10:6), and his words then provoke a division — “again the Jews were divided over these words,” some saying: “He has a demon, he is raving” (John 10:19-20).^[44] Scandal alone therefore does not prove that there is no metaphor. What distinguishes John 6 is the conjunction of three traits: the hearers receive the word in the literal sense — eating flesh —, Jesus does not undeceive them as he does for Nicodemus or the Samaritan woman, and he reinforces his point (the blood added, the concrete verb trōgō). In “I am the door,” nothing in the text shows hearers taking Jesus for an object of wood; in “eat my flesh,” everything shows hearers shocked by an affirmation taken literally — and confirmed as such.

Moreover, in a true metaphor of the type “A is B,” B illuminates A by a known quality (Jesus is like a door: one passes through him). In “this is my body,” the “this” is bread and the “body” is what it becomes: there is no metaphorical quality to transfer; it is an affirmed transformation, not a comparison.

Objection 4 — Paul Still Calls the Consecrated Element “Bread” (1 Corinthians 11:26-28)

The objection. After the consecration, Paul still speaks of “this bread”: “as often as you eat this bread…”^[45] Therefore it remains bread; therefore there is no real change.

Answer. The argument confuses the language of appearances with reality. Scripture commonly names things by their visible appearance even after a transformation: the angels who visit Abraham or Tobit are called “men” although they are spirits; Moses' staff changed into a serpent can still be called a “staff.” Likewise, the Eucharist retains the appearance (the species) of bread and wine, and is designated by this familiar name. Trent will specify: what remains are the “species” — color, taste, form — while the substance is changed.^[46] That Paul speaks of “bread” proves nothing against realism; the same Paul, in the same chapter, declares that one can be “guilty of the body and blood of the Lord” — which would be absurd if ordinary bread were at stake.

Objection 5 — Eating Blood Is Forbidden by the Law: Jesus Could Not Literally Command It

The objection. The Torah formally forbids consuming blood.^[47] Jesus, an observant Jew, could therefore not command people literally to drink his blood; the formula must be symbolic.

Answer. The objection turns entirely against itself. If Jesus had wanted to speak symbolically, he would have chosen an inoffensive image; instead, he deliberately uses the most scandalous image for a Jew — drinking blood — when he could have avoided it. This choice shows that he is not seeking a comfortable metaphor: he announces a reality that surpasses and fulfills the Law. Precisely, the prohibition of blood rested on this principle: “the life of the flesh is in the blood,” and blood belongs to God alone, reserved for expiation on the altar.^[48] Now, by giving his own blood — the blood of God made man, source of Life itself — Jesus does not violate the prohibition: he brings it to fulfillment. The blood reserved for God becomes, in him, the blood that God gives for the life of the world. Far from excluding realism, the background of the Law makes it still stronger.

Objection 6 — Realism Was Invented Later by the Church

The objection. The Real Presence would be a late construction, foreign to primitive Christianity, imposed on texts that were first symbolic.

Answer. Chronology says the opposite. The earliest text (Paul, around 54) is also the most realist; the later Gospels confirm it; and from the next generation, the Fathers read these verses realistically with constancy — and already defending it against those who denied it. Around the year 110, Saint Ignatius of Antioch, a disciple of the apostle John according to tradition, reproaches the docetic heretics for “abstaining from the Eucharist […] because they do not confess that the Eucharist is the flesh of our Savior Jesus Christ.”^[49] Such a remark would make no sense if the common faith had been symbolist. Realism is therefore not a later invention: it is the original reading, attested without interruption. The full patristic dossier is treated in The Eucharistic Real Presence.

Since this article is centered on exegesis, it will not detail the whole patristic dossier — already gathered in the doctrinal article. But two points deserve notice, because they touch directly on the reading of the verses.

Ignatius, Justin, Cyril: A Realist Reading Maintained from the Beginning

The earliest witnesses comment on John 6 and the words of institution as if it were obvious that the real body is at stake. We have already seen this with Ignatius of Antioch (around 110).^[50] Around 155, Saint Justin writes that the Eucharistic food “is the flesh and blood of that Jesus who was made flesh,” and not “common bread and common drink.”^[51] In the fourth century, Saint Cyril of Jerusalem instructs the neophytes by citing “this is my body” and exhorts them, in his Mystagogic Catecheses (IV, 6), not to judge the gift by taste, but to trust fully in faith.^[52] The realist reading is the received reading, never presented as a novelty.

The Case of Saint Augustine: Verse 63 Is “Spiritual,” Yet Realism Remains

Protestant controversialists willingly invoke Saint Augustine, who comments on John 6:63 by inviting readers to “understand spiritually” (Exposition of Psalm 98, § 9), and who elsewhere sums up the eating of faith as “believe, and you have eaten” (Tractate 25 on the Gospel of John, § 12, on John 6:28-29: “the work of God is that you believe in him whom he has sent”).^[53] From this it is inferred that Augustine was symbolist. This is a truncated reading, which confuses two distinct passages and forgets what Augustine professes elsewhere. Augustine distinguishes, as Jesus does, between a fleshly understanding (crude) and a spiritual reception (by faith, in the Spirit) — but he in no way denies the reality of the body. The same Augustine writes, commenting on Psalm 98:

“No one eats that flesh unless he has first adored it […] and not only do we not sin by adoring it, but we sin by not adoring it.” — Saint Augustine, Exposition of Psalm 98 (Psalm 99 in the Hebrew numbering), § 9^[54]

One does not adore a symbol. And in an Easter sermon to the newly baptized he is clearer still:

“The bread that you see on the altar, sanctified by the word of God, is the body of Christ. That cup — or rather, what the cup contains — sanctified by the word of God, is the blood of Christ.” — Saint Augustine, Sermon 227, § 1^[55]

Augustine therefore reads John 6:63 exactly as the Catholic Church does: not to deny the Real Presence, but to require that it be received spiritually, in faith and in the Spirit. To invoke him against realism is to make him say the opposite of what he professes.

A historical fact sheds light on the solidity of the biblical text: the Reformers themselves were divided over the meaning of “this is my body.” If the symbolic meaning had been obvious, they would not have broken with one another on this point.

Luther Against Zwingli: The Colloquy of Marburg (1529)

In October 1529, Landgrave Philip of Hesse gathered the leaders of the Reformation at Marburg to unite them. On fifteen articles (Marburg Articles), they agreed on fourteen, the fifteenth on the Eucharist causing the union to fail. Martin Luther firmly held that “this is my body” means what it says: Christ is truly present. Ulrich Zwingli held that “is” means “signifies,” and that the Supper is a memorial. A famous gesture illustrates Luther's intransigence: according to the account reported notably by Andreas Osiander, who was present at the colloquy, he wrote in chalk on the table, covered with a cloth, the Latin words “Hoc est corpus meum” (“This is my body”), and stood by them throughout the debates, refusing to depart from them.^[56]

“Hoc est corpus meum” (“This is my body”) — The words of Christ, which Luther wrote in chalk on the table at Marburg, according to tradition (October 1529)^[57]

The colloquy ended without agreement, and Protestantism remained durably divided on the Eucharist: Lutherans (real presence through “sacramental union”), Zwinglian Reformed (pure symbol), Calvinists (true participation in the body and blood by the Spirit, received by faith alone).

What This Disagreement Reveals

That Luther — founder of the Reformation, hostile to Rome on almost everything — defended to the end the realism of Christ's words is a precious testimony. For him, refusing to take “this is my body” seriously was to betray the text in the name of a philosophy. Eucharistic realism is therefore not a Roman whim: it is the reading that imposes itself when Jesus' words are taken as they stand. As for the purely symbolic reading, it was not born in the sixteenth century: Berengar of Tours already professed it in the eleventh century, giving of Christ's presence a “reductive […] merely symbolic interpretation” — for which he was condemned several times (Council of Rome in 1059, then Roman synods of 1078-1079), as Benedict XVI recalled in his audience of 9 December 2009.^[58] What the sixteenth century brings forth is the revival of this reduction by some of the Reformers — without ever achieving unanimity, even among those who rejected the Catholic Church.

The initial question calls for a clear answer. Yes — and Scripture does so through a convergence that the symbolic reading cannot dissolve:

• John 6: Jesus identifies the bread with his flesh, uses at the moment of scandal the concrete verb trōgō (“to chew”), deliberately introduces blood, and lets the disciples who refuse the gift leave — without ever reducing it to an image.
• The words of institution: the body given, the blood poured out of the Covenant — a core attested four times, in sacrificial language (“given,” “poured out”) and not metaphorical language.
• Saint Paul, the earliest witness: “communion in the body and blood,” guilt of the one who eats “unworthily,” requirement to “discern the body” — all absurd if the Eucharist were only a sign.
• The Old Testament prepared this mystery through the manna, the Bread of the Presence, Melchizedek, the Passover lamb and Malachi's “pure offering.”
• The first Christians read these texts realistically, and the words of institution were defended in this sense down to Reformers such as Luther — although Luther, for his part, did not make John 6 a directly Eucharistic discourse.^[59]

The verse opposed to this reading — “the flesh profits nothing” (John 6:63) — is not a denial, but a key: the Real Presence is not grasped “according to the flesh,” by human calculation, but “in the Spirit,” by faith. This is exactly what Peter confessed when the others were leaving:

“Lord, to whom shall we go? You have the words of eternal life.” — Saint Peter, John 6:68

For the dogmatic development of this faith — transubstantiation, the definitions of the Council of Trent, the answer to philosophical objections and the divergences between Luther and Calvin — see The Eucharistic Real Presence.

• The Eucharistic Real Presence — the doctrinal article: transubstantiation, Fathers, councils, Reformers.
• Why Is the Eucharist a Sacrifice? — the sacrificial character of the Mass and the answer to the objection from Hebrews.
• Sola Scriptura — Scripture Alone — why reading Scripture calls for the interpretation of the Church.
• The Council of Trent (1545-1563) — the dogmatic definition of the Real Presence.
• The Eucharistic Miracle of Bolsena (1263) and Faverney (1608) — when Eucharistic realism becomes visibly manifest.
• Should One Receive Communion in the Hand or on the Tongue? — a practical question connected to faith in the Real Presence.