The Ecclesiastical History of Theodoret, which begins with the rise of Arianism and closes with the death of Theodore in 429 (despite being completed in 449-450) is very different in style from those of Socrates Scholasticus and Sozomen. It contains many sources otherwise lost, specially letters on the Arian controversy; however, the book is extremely partisan, the heretics being consistently blackened and described as afflicted with the 'Arian plague'. The narrative is more compressed than in the other historians, and Theodoret often strings documents together, with only brief comments between. Original material of Antiochian information appears chiefly in the latter books. Theodoret's sources are in dispute. According to Valesius these were mainly Socrates and Sozomen; Albert Guldenpenning's thorough research placed Rufinus first, and next to him, Eusebius of Caesarea, Athanasius, Sozomen, Sabinus, Philostorgius, Gregory Nazianzen, and, least of all, Socrates. N. Glubokovskij counts Eusebius, Rufinus, Philostorgius, and, perhaps, Sabinus.

When artists paint on panels and on walls the events of ancient history, they alike delight the eye, and keep bright for many a year the memory of the past. Historians substitute books for panels, bright description for pigments, and thus render the memory of past events both stronger and more permanent, for the painter’s art is ruined by time. For this reason I too shall attempt to record in writing events in ecclesiastical history hitherto omitted, deeming it indeed not right to look on without an effort while oblivion robs noble deeds and useful stories of their due fame. For this cause too I have been frequently urged by friends to undertake this work. But when I compare my own powers with the magnitude of the undertaking, I shrink from attempting it. Trusting, however, in the bounty of the Giver of all good, I enter upon a task beyond my own strength.

Theodoret of Cyrus or Cyrrhus was an influential theologian of the School of Antioch, biblical commentator, and Christian bishop of Cyrrhus. He played a pivotal role in several 5th-century Byzantine Church controversies that led to various ecumenical acts and schisms.

Authoritatively places the fifth-century bishop Theodoret and his work in the proper historical and literary context

The epistles of St. Paul, among which Theodoret reckons the Epistle to the Hebrews, are the only portions of the New Testament on which we possess our author’s commentaries. On them the late Bishop Lightfoot writes, “Theodoret’s commentaries on St. Paul are superior to his other exegetical writings, and have been assigned the palm over all patristic expositions of Scripture. See Schroeckh xviii. p. 398. sqq., Simon, p. 314 sqq. Rosenmueller iv. p. 93 sqq., and the monograph of Richter, de Theodoreto Epist. Paulin, interprete (Lips. 1822.)

“Adam Schor explores the social and doctrinal role of Theodoret in a novel and lively way, making use of social theory, and seeing Theodoret's activities and contacts against the rich documentation provided by the great ecclesiastical controversies of his time.” —Fergus Millar, author of A Greek Roman Empire: Power and Belief under Theodosius II, 408-450 “Schor's proposal that modern social network theory is the key to understanding Theodoret of Cyrus's social positioning and mode of controversy makes for compelling reading. His nuanced yet powerful analysis shows the continued relevance of socio-scientific methods for understanding the history of late antique Christianity.” —Richard Lim, author of Public Disputation, Power and Social Order in Late Antiquity "Adam Schor has written a lively and incisive study of a notoriously difficult era. Mining the substantial (but greatly understudied) letter collections of the times, applying the insights of network theory, and boldly taking on the entire corpus of Theodoret's writings—an ambitious project in itself—Schor has produced strikingly fresh material throughout. With rich insight and rigorous attention to detail, Schor opens new vistas on the late antique landscape. Thought-provoking at every turn!” Susan Ashbrook Harvey, author of Scenting Salvation: Ancient Christianity and the Olfactory Imagination

Philostorgius (born 368 C.E.) was a member of the Eunomian sect of Christianity, a nonconformist faction deeply opposed to the form of Christianity adopted by the Roman government as the official religion of its empire. He wrote his twelve-book Church History, the critical edition of the surviving remnants of which is presented here in English translation, at the beginning of the fifth century as a revisionist history of the church and the empire in the fourth and early-fifth centuries. Sometimes contradicting and often supplementing what is found in other histories of the period, Christian or otherwise, it offers a rare dissenting picture of the Christian world of the time.