Replies

As to the Blessed Sacrament not being declared the Body and Blood of Christ prior to the 10th or 11th Century:

They abstain from the Eucharist and from prayer, because they confess not the Eucharist to be the flesh of our Saviour Jesus Christ, which suffered for our sins, and which the Father, of His goodness, raised up again.
Ignatius, Epistle to the Smyrnæans, 7:1 (circa 110 AD)
He has acknowledged the cup (which is a part of the creation) as His own blood, from which He bedews our blood; and the bread (also a part of the creation) He has established as His own body, from which He gives increase to our bodies.
Irenaeus, Against Heresies, 5.2.2 (circa 190)
7. Moreover, the things which are hung up at idol festivals23742374 πανηγύρεσι. The Panegyris was strictly a religious festival, but was commonly accompanied by a great fair or market, in which were sold not only such things as the worshippers might need for their offerings, e.g. frankincense, but also the flesh of the animals which had been sacrificed. Cf. Dictionary of Greek and Rom. Antiq. “Panegyris.” Tertull. Apolog. § 42: “We do not go to your spectacles: yet the articles that are sold there, if I need them, I shall obtain more readily at their proper places. We certainly buy no frankincense.”, either meat or bread, or other such things polluted by the invocation of the unclean spirits, are reckoned in the pomp of the devil. For as the Bread and Wine of the Eucharist before the invocation of the Holy and Adorable Trinity were simple bread and wine, while after the invocation the Bread becomes the Body of Christ, and the Wine the Blood of Christ, so in like manner such meats belonging to the pomp of Satan, though in their own nature simple, become profane by the invocation of the evil spirit.
Cyril of Jerusalem, Catechetical Lectures XIX (First Lecture on the Mysteries), paragraph 7 (circa 350)
Consider therefore the Bread and the Wine not as bare elements, for they are, according to the Lord’s declaration, the Body and Blood of Christ; for even though sense suggests this to thee, yet let faith establish thee. Judge not the matter from the taste, but from faith be fully assured without misgiving, that the Body and Blood of Christ have been vouchsafed to thee.
Cyril of Jerusalem, Catechetical Lectures XXII (On the Body and Blood of Christ), paragraph 6. (circa 350)

The second and fourth centuries are both prior to the 10th or 11th centuries, aren't they?

The second and fourth centuries are both prior to the 10th or 11th centuries, aren't they?

Although the Great Schism is generally dated as happening in 1054, the truth is that the East and West had been at odds for some time. Yet, the Orthodox belief in the Real Presence is IDENTICAL to what Catholics believe.

Within decades of the Resurrection, St. Ignatius and others denounced those who denied the Real Presence as heretics; after that, NOBODY who claimed to be a Christian denied the Real Presence for another 13 or 14 centuries until Zwingli came along.

Augustine on the symbols.

‘If the sentence . . . seems to enjoin a crime or vice. . . it is figurative. “Except ye eat the flesh of the Son of man,” says Christ, “and drink His blood, ye have no life in you.” This seems to enjoin a crime or a vice; it is therefore a figure, enjoining that we should have a share in the sufferings of our Lord, and that we should retain a sweet and profitable memory of the fact that His flesh was wounded and crucified for us.’ Philip Schaff, Nicene and Post-Nicene Fathers, vol. II, St. Augustin: The City of God and On Christian Doctrine, On Christian Doctrine 3.16.2 (Grand Rapids: Eerdmans, 1956), p. 563.

‘While we consider it no longer a duty to offer sacrifices, we recognise sacrifices as part of the mysteries of Revelation, by which the things prophesied were foreshadowed. For they were our examples, and in many and various ways they pointed to the one sacrifice which we now commemorate. Now that this sacrifice has been revealed, and has been offered in due time, sacrifice is no longer binding as an act of worship, while it retains its symbolic authority. . . Before the coming of Christ, the flesh and blood of this sacrifice were fore-shadowed in the animals slain; in the passion of Christ the types were fulfilled by the true sacrifice; after the ascension of Christ, this sacrifice is commemorated in the sacrament.’ Philip Schaff, Nicene and Post-Nicene Fathers, vol. IV, St. Augustin: The Writings Against the Manicheans and Against the Donatists, Reply to Faustus the Manichean 6.5, 20.21 (New York: Longmans, Green, 1909), pp. 169, 262.