Viacheslav V. Lytvynenko, Ph.D. (2014), Charles University, Prague, Czech Republic, is a research professor of Greek patristics and Slavic medieval tradition. His works include critical Slavonic editions of Athanasius of Alexandria’s Orations against the Arians (Brepols, 2019 and 2021).Mikhail V. Shpakovskiy, M.Phil. (2019), is a junior researcher at the Institute of Philosophy of the Russian Academy of Science. His research areas include Byzantine philosophy, analytic philosophy of religion, metaphysics, and the reception of patristic philosophy in Old Rus'.

• Preface and AcknowledgmentsList of TablesAbbreviationsA Note on Slavic NamesIntroduction1 Zinoviy Otenskiy and the Trinitarian Controversy2 Zinoviy’s Writings3 Zinoviy’s Doctrine of the Trinity, Christ, and SalvationA Note on TranslationTablesThe Panegyric to St. Hypatius of GangraIntroduction to the Panegyric to St. Hypatius of GangraText and Translation of the Panegyric to St. Hypatius of GangraThe Demonstration of TruthIntroduction to the Demonstration of TruthText and Translation of the Demonstration of TruthBibliographyIndex of NamesIndex of Biblical Quotations