It seems to me that there are two inseparable issues here. First, Augustine's "place" in the Orthodox Church. Second, Augustine's "contributions" to Western departures from the ancient Orthodox Christian consensus. History indicates that Augustine (and Jerome) did not have an important place in the Universal Church of the Seven Ecumenical Synods analogous to the importance of the Three Great Hierarchs, or Athanasius and Cyril, or Maximus, or John Damascene. In contrast, Augustine was mainly influential in local Latin-language disputes over Manichaeism, Donatism, and Pelagianism. Augustine did, however, contribute greatly to the departure of the West from the ancient patristic consensus. That is the sad tragedy. Romanides has written on how Augustine was not faithful to the teachings of his teacher Saint Ambrose. There is an entire book documenting how Augustine often distained the patristic teachings of Saint Cyprian and substituted Augustine's own personal preferences in place of the inherited deposit of the faith.
Augustine should not be used to divide old-calendar synods further, and such further division would be contrary to my purpose here, but we should not hide the historical facts about Augustine’s massive errors. Honest historiography on the estrangement of Roman Catholic and Protestant theology from ancient and Byzantine theology cannot sweep Augustine’s departures from patristic theology under the rug. If a thorough examination of the East-West schism is ever written in a single book, the topic of Augustine’s deviations from patristic consensus will require tens of thousands of words. The medieval Latin church fell into several fundamental errors. It increasingly relied on one man, Augustine, and his writings, to the detriment of the body of church fathers; and it increasingly relied on one man, the pope, rather than the body of the bishops, with all bishops charged with preserving the deposit of faith. In this way the late medieval Latin church became something very different from the original Church founded by Jesus Christ Himself, which preserved East–West unity up to and past the time of the Seventh Universal Council in A.D. 787, and further to the synod of 879–880 in Constantinople. That synod again forbade any change to the Creed, even by a pope of Rome; and it reaffirmed the validity of Saint Photius, who opposed extreme papal supremacy and other changes to the Christian faith.
THE ANCIENT CONSENSUS
During the first nine centuries of the Christian era, the one Christian Church—including the pope and church of Rome (the patriarchate of the west) and the four Eastern Orthodox Catholic patriarchates came to a consensus[1] on accepting the same twenty-seven books of the New Testament Scriptures,[2] the same eighty-five apostolic canons,[3] the same seven universal councils,[4] the same nine universally-accepted local councils,[5] and a list of twelve individual bishops whose canons (or decretal letters) were accepted by the Church, including Saints Athanasius, Basil, Gregory of Nyssa, Gregory the Theologian, and Cyril.[6] Augustine was not among these twelve bishops. There were also at least seven important western councils[7] that rejected both the errors of Pelagianism concerning salvation and also the errors of extreme anti-Pelagianism (also known as extreme Augustinianism). This represented an East-West doctrinal consensus that rejected both Pelagianism and extreme Augustinianism (which comes very close to four of the five points in the much later Protestant “Five Points of Calvinism”). (In modern times, both the Orthodox Churches [and even the Roman Catholic Church] again reiterated their rejections of extreme Augustinianism/Calvinism.) The Synodicon of Orthodoxy (compiled in stages between 843 and 1352) also lists numerous bishops and theologians considered authoritative teachers of the Church in East and West, including --- in addition to the twelve bishops who wrote canons or decretal letters accepted by the Fifth-Sixth Synod --- Saints Ambrose of Milan, John Chrysostom, Maximus the Confessor, John of Damascus, Theodore of Studium, Gregory Palamas, and several others. Augustine is not mentioned among these teachers by either the Fifth-Sixth Synod or the Synodicon of Orthodoxy. The Synodicon of the Holy Spirit and the Synod of 1285 in Constantinople were specifically directed against the Filioque error, to which Augustine contributed greatly.
The teachings of Christ, the apostles, the New Testament Scriptures, the ancient synods, the ancient liturgies and prayers, and the ancient saints and writers of the Church, all together, represent the ancient Orthodox (right-believing) and Catholic (whole, universal) Christian consensus. This is known as the “consensus of the Fathers” (consensus patrum in Latin). It is also known, more literally from the Greek, as the “symphony of the Fathers” (symphōnía tôn patérōn), since this stream of teachers teaches Christian truth with symphonic or harmonious voices. This stream of authoritative teaching and practice is none other than historic Christianity itself. This body of historic Christian consensus teaching and piety predates the distortions introduced along with the rise of extreme papal supremacy during the later medieval period in the West.
THE PAPAL REVOLUTION
For at least the first nine hundred years of the Christian era, the Church of Rome and the Orthodox Churches of the East, despite temporary breakages in communion, formed one visibly united Church. After approximately one thousand years, the Church of Rome separated—theologically, sacramentally, and administratively—from the four ancient Orthodox Catholic patriarchates of the East. For simplicity, the schism is dated to the excommunications that were exchanged in the year 1054, but the separation was also a process that does not have only one key date. As the Encyclopedia of Religion (1987) states, “Byzantium continued to live in a patristic atmosphere, using the ideas and language of the Greek Fathers of the fourth century. But in Western Europe the tradition of the Fathers was replaced by scholasticism―that great synthesis of philosophy and theology worked out in the twelfth and thirteenth centuries. Western theologians now came to employ new categories of thought, a new theological method, and a new terminology.” Coinciding with the schism of the eleventh century, the rise of scholastic theology and papal absolutism made the western Church a very different entity from what it had been when it was in communion with the Orthodox Churches of the East. As the influential French Roman Catholic priest and scholar Yves Congar wrote, “Between the end of the 11th century and the end of the 12th, everything is changed in the West.” The Orthodox Catholic Churches of the East continued the united Eastern-Western Orthodox Catholic Church of ancient times, whereas the Latin church became something very different, as serious historians agree, since “everything [was] changed in the West.”[9]
The fact that Augustinianism and Latin scholasticism constituted a radical theological change from ancient patristic theology of the East and West is acknowledged by competent modern historians of East and West. Another Roman Catholic scholar writes, referring to several Roman Catholic saints: "Latin theology, derived from St Augustine, dominated the [West-European] Middle Ages, and inspired the [Protestant] Reformers. So that from St Thomas [Aquinas] to Malebranche, from St Bernard to Jansenius, the history of theology and philosophy [in the West] was bound up with the fortunes of Augustinianism, just as if this were a second tradition mingled with the first, as if it had given, on the threshold of the new age, a new version of the Christian message."[10]
This “new version” of Christianity (post-schism Roman Catholicism) was put together in the late Middle Ages in the West on the basis of the deviations of Augustinianism, papal absolutism, and scholastic theology. Its novelty is acknowledged as a historical fact by theologians and historians of East and West. Augustine, the rise of papal supremacy, the Gregorian Reform, and Thomas Aquinas and scholasticism were key factors is causing the papal church to depart from the Orthodox Christian consensus of the first 850 years.
ENDNOTES
[1] This ancient East-West consensus on Scripture, dogma, councils, canons, and fathers was ratified at the Synod of 878–880 in Constantinople, Decree and Canons 1–3; Johan A. Meijer, A Successful Council of Union: A Theological Analysis of the Photian Synod of 879–880 (Ἀνάλεκτα Βλατάδων 23; Thessalonica: Πατριαρχικὸν Ἵδρυμα Πατερικῶν Μελετῶν, 1975); George D. Dragas, “The Eighth Ecumenical Council: Constantinople IV (879/880) and the Condemnation of the Filioque Addition and Doctrine,” Greek Orthodox Theological Review 44 [1999]: 357–369; James Thornton, The Œcumenical Synods of the Orthodox Church: A Concise History (Etna, CA: Center for Traditionalist Orthodox Studies, 2007; 2d ed.; 2012), 122–133.
[2] “Of the New Testament: four books of the Gospels [Matthew, Mark, Luke, John], one book of the Acts of the Apostles, thirteen epistles of the Apostle Paul, one epistle of the same to the Hebrews, two epistles of the Apostle Peter, three of John, one of James, one of Jude, one book of the Revelation of John” (Synod of 397 in Carthage, Canon 17).
[3] “[T]he eighty-five canons, received and ratified by the holy and blessed fathers before us, and also handed down to us in the name of the holy and glorious apostles” (Synod of 692 in Constantinople [Fifth-Sixth Ecumenical Synod], Canon 2).
[4] Synod of 325 in Nicaea (First Ecumenical Synod); Synod of 381–382 in Constantinople (Second Ecumenical Synod); Synod of 431 in Ephesus (Third Ecumenical Council); Synod of 451 in Chalcedon (Fourth Ecumenical Synod); Synod of 553 in Constantinople (Fifth Ecumenical Synod); Synod of 680–681 in Constantinople (Sixth Ecumenical Synod); Synod of 692 in Constantinople (Fifth-Sixth Ecumenical Synod; Quinisext Synod; Synod in Trullo); Synod of 787 in Nicaea (Seventh Ecumenical Synod).
[5] Synod of 256 in Carthage under Saint Cyprian, Canon 1; Synod of 314 in Ancyra, Canons 1–25; Synod of 315 in Neocaesarea, Canons 1–15; Synod of 340 in Gangra, Canons 1–21; Synod of 341 in Antioch, Canons 1–25; Synod of 347 in Sardica, Canons 1–20; Synod of 364 in Laodicea, Canons 1–59; Synod of 394 in Constantinople under Archbishop Nectarius of Constantinople and Archbishop Theophilus of Alexandria, Canons 1–2; and Synod of 418/419 in Carthage, Canons 1–148.
[6] “[T]he canons [decretal letters] of Dionysius, formerly Archbishop of the great city of Alexandria; and of Peter, Archbishop of Alexandria and Martyr; of Gregory the Wonder-worker, Bishop of Neocaesarea; of Athanasius, Archbishop of Alexandria; of Basil, Archbishop of Caesarea in Cappadocia; of Gregory, Bishop of Nyssa; of Gregory the Theologian; of Amphilochius of Iconium; of Timothy, Archbishop of Alexandria; of Theophilus, Archbishop of the same great city of Alexandria; of Cyril, Archbishop of the same Alexandria; of Gennadius, Patriarch of this heaven-protected royal city. Moreover the canon set forth by Cyprian, Archbishop of the country of the Africans and Martyr, and by the synod under him, which has been kept only in the country of the aforesaid bishops, according to the custom delivered down to them” (Synod of 692 in Constantinople [Fifth-Sixth Ecumenical Synod], Canon 2).
[7] Synod of 473 in Arles, Synod of 474 in Lyons, Synod of 529 in Orange, Synod of 849 in Quiercy, Synod of 855 in Valance, Synod of 859 in Langres, and Synod of 860 in Toul.
[8] Kallistos Timothy Ware, “Eastern Christianity,” in Mircea Eliade, ed., Encyclopedia of Religion (New York: Macmillan, 1987); Kallistos Timothy Ware, The Orthodox Church (Penguin, 1993); Kallistos Timothy Ware, “Scholasticism and Orthodoxy: Theological Method as a Factor in the Schism,” Eastern Churches Review 5.1 (Spring 1973): 16–27.
[9] Yves Congar, quoted in Kallistos Timothy Ware, “Scholasticism and Orthodoxy: Theological Method as a Factor in the Schism,” Eastern Churches Review 5.1 (Spring 1973): 16–27, at 16.
[10] Jean Guitton, The Modernity of Saint Augustine, 80, emphasis added, quoted in John Mahoney, The Making of Moral Theology: A Study of the Roman Catholic Tradition (The Martin D’Arcy Memorial Lectures 1981–2; Oxford: Clarendon Press 1987), 68. For a summary of pre-Vatican II Roman Catholic theology, see Ludwig Ott, Fundamentals of Catholic Dogma ([1st German ed.; Grundriss der Katholischen Dogmatik; Freiburg: Herder, 1952]; 1st English ed.; tr. Patrick Lynch; Cork, Ireland: Mercier, 1955; [11th German ed.; Bonn: Nova & Vetera, 2010]; English ed. James Canon Bastible; rev. Robert Fastiggi; forw. Athanasius Schneider; Baronius, 2018; 2022).