SABELLIANISM The most sophisticated form of modalist Monarchian opinions concerning the godhead and named after its originator, Sabellius “the Libyan” (fl. c. 220). Nothing is known of Sabellius, except that he was in all probability a Christian from one of the cities of Cyrenaica, where his opinions continued to be supported throughout the third century, …

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HOMOIOUSION term meaning “of like substance” and used by many who were caught between the extremes of the Nicene party (HOMOOUSION, “of the same substance”) and the radical Arians who had emerged about 355. The great majority of moderates rallied under Basil of Ancyra around the compromise homoiousion, among them Melitius of Antioch and CYRIL …

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