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Semi-Arianism was a position regarding the relationship between
God the Father God the Father is a title given to God in Christianity. In mainstream trinitarian Christianity, God the Father is regarded as the first person of the Trinity, followed by the second person, God the Son Jesus Christ, and the third person, God t ...
and the Son of God, adopted by some
4th-century Christians The 4th century (per the Julian calendar and Anno Domini/Common era) was the time period which lasted from 301 ( CCCI) through 400 ( CD). In the West, the early part of the century was shaped by Constantine the Great, who became the first Roma ...
. Though the doctrine modified the teachings of
Arianism Arianism ( grc-x-koine, Ἀρειανισμός, ) is a Christological doctrine first attributed to Arius (), a Christian presbyter from Alexandria, Egypt. Arian theology holds that Jesus Christ is the Son of God, who was begotten by God ...
, it still rejected the doctrine that
Father, Son, and Holy Spirit The Christian doctrine of the Trinity (, from 'threefold') is the central dogma concerning the nature of God in most Christian churches, which defines one God existing in three coequal, coeternal, consubstantial divine persons: God the Fa ...
are co-eternal, and of the same substance, or
consubstantial Consubstantiality, a term derived from la, consubstantialitas, denotes identity of substance or essence in spite of difference in Aspect (religion), aspect. It appears most commonly in its adjectival form, "consubstantial", from Latin ''cons ...
, and was therefore considered to be
heretical Heresy is any belief or theory that is strongly at variance with established beliefs or customs, in particular the accepted beliefs of a church or religious organization. The term is usually used in reference to violations of important religi ...
by many contemporary Christians."semi-Arianism." Encyclopædia Britannica. Encyclopædia Britannica Ultimate Reference Suite. Chicago: Encyclopædia Britannica, 2012. Arius held that the Father, Son, and Holy Spirit were three separate essences or substances (
ousia ''Ousia'' (; grc, οὐσία) is a philosophical and theological term, originally used in ancient Greek philosophy, then later in Christian theology. It was used by various ancient Greek philosophers, like Plato and Aristotle, as a primary des ...
) and that the Son and Spirit derived their divinity from the Father, were created, and were inferior to the Godhead of the Father. Semi-Arians asserted that the Son was "of a similar substance" (homoiousios) as the Father but not "of the same substance" (homoousios).


History

Arianism was the view of
Arius Arius (; grc-koi, Ἄρειος, ; 250 or 256 – 336) was a Cyrenaic presbyter, ascetic, and priest best known for the doctrine of Arianism. His teachings about the nature of the Godhead in Christianity, which emphasized God the Father's un ...
and his followers, the
Arians Arianism ( grc-x-koine, Ἀρειανισμός, ) is a Christological doctrine first attributed to Arius (), a Christian presbyter from Alexandria, Egypt. Arian theology holds that Jesus Christ is the Son of God, who was begotten by God t ...
, that
Jesus Jesus, likely from he, יֵשׁוּעַ, translit=Yēšūaʿ, label=Hebrew/Aramaic ( AD 30 or 33), also referred to as Jesus Christ or Jesus of Nazareth (among other names and titles), was a first-century Jewish preacher and religious ...
was subordinate to, and of a different being (
ousia ''Ousia'' (; grc, οὐσία) is a philosophical and theological term, originally used in ancient Greek philosophy, then later in Christian theology. It was used by various ancient Greek philosophers, like Plato and Aristotle, as a primary des ...
) to
God the Father God the Father is a title given to God in Christianity. In mainstream trinitarian Christianity, God the Father is regarded as the first person of the Trinity, followed by the second person, God the Son Jesus Christ, and the third person, God t ...
. Arians opposed the view that the three persons of the
Trinity The Christian doctrine of the Trinity (, from 'threefold') is the central dogma concerning the nature of God in most Christian churches, which defines one God existing in three coequal, coeternal, consubstantial divine persons: God the F ...
were of one being or
substance Substance may refer to: * Matter, anything that has mass and takes up space Chemistry * Chemical substance, a material with a definite chemical composition * Drug substance ** Substance abuse, drug-related healthcare and social policy diagnosis ...
. Arianism spread among the Church of
Alexandria Alexandria ( or ; ar, ٱلْإِسْكَنْدَرِيَّةُ ; grc-gre, Αλεξάνδρεια, Alexándria) is the second largest city in Egypt, and the largest city on the Mediterranean coast. Founded in by Alexander the Great, Alexandria ...
and the Eastern Mediterranean. After the
First Council of Nicaea The First Council of Nicaea (; grc, Νίκαια ) was a council of Christian bishops convened in the Bithynian city of Nicaea (now İznik, Turkey) by the Roman Emperor Constantine I in AD 325. This ecumenical council was the first effort ...
condemned Arianism as
heresy Heresy is any belief or theory that is strongly at variance with established beliefs or customs, in particular the accepted beliefs of a church or religious organization. The term is usually used in reference to violations of important religi ...
, many Christians adopted compromise views in which they remained in communion with Arians without adopting Arianism itself. Various formulae, such as the
homoiousian Homoiousios ( el, ὁμοιούσιος from , ''hómoios'', "similar" and , '' ousía'', "essence, being") is a Christian theological term, coined in the 4th century by a distinctive group of Christian theologians who held the belief that God t ...
and the
homoean The Acacians (), also known as the Homoians or Homoeans (), were an Arianism, Arian sect which played a major role in the Gothic Christianity, Christianization of the Goths in the Danubian provinces of the Roman Empire. They first emerged into ...
, were proposed to compromise between Arian teachings (''heteroousios'') and the doctrine of one substance (''homoousios'') asserted in the
Nicene Creed The original Nicene Creed (; grc-gre, Σύμβολον τῆς Νικαίας; la, Symbolum Nicaenum) was first adopted at the First Council of Nicaea in 325. In 381, it was amended at the First Council of Constantinople. The amended form is a ...
. After the 325 Council of Nicea anathemized Arianism: the majority of the Eastern bishops, who agreed to the deposition of
Athanasius of Alexandria Athanasius I of Alexandria, ; cop, ⲡⲓⲁⲅⲓⲟⲥ ⲁⲑⲁⲛⲁⲥⲓⲟⲩ ⲡⲓⲁⲡⲟⲥⲧⲟⲗⲓⲕⲟⲥ or Ⲡⲁⲡⲁ ⲁⲑⲁⲛⲁⲥⲓⲟⲩ ⲁ̅; (c. 296–298 – 2 May 373), also called Athanasius the Great, ...
at Tyre in 335 and received the Arians to communion at
Jerusalem Jerusalem (; he, יְרוּשָׁלַיִם ; ar, القُدس ) (combining the Biblical and common usage Arabic names); grc, Ἱερουσαλήμ/Ἰεροσόλυμα, Hierousalḗm/Hierosóluma; hy, Երուսաղեմ, Erusałēm. i ...
on their repentance, were not Arians. The
Dedication Council of Antioch Beginning with three synods convened between 264 and 269 in the matter of Paul of Samosata, more than thirty councils were held in Antioch in ancient times. Most of these dealt with phases of the Arian and of the Christological controversies. For ...
in 341 put forth a creed which was unexceptionable but for its omission of the Nicene formula "of One Substance." Even disciples of Arius such as bishop
George of Laodicea George (died 359) was the bishop of Laodicea in Syria from 335 until his deposition in 347. He took part in the Trinitarian controversies of the fourth century. At first an ardent admirer of the teaching of Arius and associated with Eusebius of ...
(335-47) and
Eustathius of Sebaste Eustathius of Sebaste ( grc-gre, Ἐυστάθιος Σεβαστιανός) was bishop of Sebastia in Armenia (modern Sivas, Turkey) during the fourth century. He was originally a monk, and is said to have been the first who acquainted the Armenia ...
(c. 356–80) joined the moderate party, and after the death of
Eusebius of Nicomedia Eusebius of Nicomedia (; grc-gre, Εὐσέβιος; died 341) was an Arian priest who baptized Constantine the Great on his deathbed in 337. A fifth-century legend evolved that Pope Saint Sylvester I was the one to baptize Constantine, but this ...
, the leaders of the court faction,
Ursacius of Singidunum Ursacius ( 335–346) was the bishop of Singidunum (the ancient city which was to become Belgrade), during the middle of the 4th century. He played an important role during the evolving controversies surrounding the legacies of the Council of Nic ...
,
Valens of Mursa Valens of Mursa was bishop of Mursa (Osijek in modern Croatia) and a supporter of Homoian theology, which is often labelled as a form of Arianism, although semi-Arianism is probably more accurate. Life Valens and his fellows were seen by contempo ...
and
Germinius of Sirmium Germinius, born in Cyzicus, was bishop of Sirmium, (today the town Sremska Mitrovica, in the territory of Srem in Serbia) and a supporter of Homoian theology, which is often labelled as a form of Arianism. Along with Valens of Mursa and Ursacius of ...
, were not tied to any formula, for Emperor
Constantius II Constantius II (Latin: ''Flavius Julius Constantius''; grc-gre, Κωνστάντιος; 7 August 317 – 3 November 361) was Roman emperor from 337 to 361. His reign saw constant warfare on the borders against the Sasanian Empire and Germani ...
himself hated Arianism, though he disliked Athanasius yet more. When Marcellus of Ancyra was deposed in 336, he was succeeded by Basil. Marcellus was reinstated by the
Council of Serdica The Council of Serdica, or Synod of Serdica (also Sardica located in modern day Sofia, Bulgaria), was a synod convened in 343 at Serdica in the civil diocese of Dacia, by Emperors Constans I, augustus in the West, and Constantius II, augustus in ...
and bishop Julius of Rome in 343, but Basil was restored in 350 by Constantius, over whom he gained considerable influence. He was the leader of a council at
Sirmium Sirmium was a city in the Roman province of Pannonia, located on the Sava river, on the site of modern Sremska Mitrovica in the Vojvodina autonomous provice of Serbia. First mentioned in the 4th century BC and originally inhabited by Illyrians an ...
in 351, held against
Photinus Photinus (Greek Φωτεινός; died 376), was a Christian bishop of Sirmium in Pannonia Secunda (today the town Sremska Mitrovica in Serbia), best known for denying the incarnation of Christ, thus being considered a heresiarch by the Catholic C ...
who had been a deacon at Ancyra, and the canons of this synod begin by condemning Arianism, though they do not quite come up to the Nicene standard. Basil had afterwards a disputation with the
Anomoean In 4th-century Christianity, the Anomoeans , and known also as Heterousians , Aetians , or Eunomians , were a sect that upheld an extreme form of Arianism, that Jesus Christ was not of the same nature (consubstantial) as God the Father nor was of ...
Aëtius. After the defeat of
Magnentius Magnus Magnentius ( 303 – 11 August 353) was a Roman general and usurper against Constantius II from 350 to 353. Of Germanic descent, Magnentius served with distinction in Gaul under the Western emperor Constans. On 18 January 350 Magnentius ...
at
Mursa Osijek () is the fourth-largest city in Croatia, with a population of 96,848 in 2021. It is the largest city and the economic and cultural centre of the eastern Croatian region of Slavonia, as well as the administrative centre of Osijek-Baranja ...
in 351, Valens, bishop of that city, became the spiritual director of Constantius. In 355 Valens and Ursacius obtained the exile of the Western confessors Eusebius,
Lucifer of Cagliari Lucifer of Cagliari ( la, Lucifer Calaritanus, it, Lucifero da Cagliari; died 20 May 370 or 371) was a bishop of Cagliari in Sardinia known for his passionate opposition to Arianism. He is venerated as a Saint in Sardinia, though his status rem ...
,
Hilary of Poitiers Hilary of Poitiers ( la, Hilarius Pictaviensis; ) was Bishop of Poitiers and a Doctor of the Church. He was sometimes referred to as the "Hammer of the Arians" () and the "Athanasius of the West". His name comes from the Latin word for happy or ...
, and Liberius followed. In 357 they issued the second Creed of Sirmium, or "formula of Hosius", in which ''homoousios'' and ''homoiousios'' were both absent.
Eudoxius Eudoxius (Ευδόξιος; died 370) was the eighth bishop of Constantinople from January 27, 360 to 370, previously bishop of Germanicia and of Antioch. Eudoxius was one of the most influential Arians. Biography Eudoxius was from Arabissos of ...
seized the See of Antioch, and supported Aëtius and his disciple Eunomius. The
Third Council of Sirmium The Councils of Sirmium were the five episcopal councils held in Sirmium in 347, 351, 357, 358 and finally in 375 or 378. The third—the most important of the councils—marked a temporary compromise between Arianism and the Western bishops of the ...
in 357 was the high point of Arianism. The Seventh Arian Confession (Second Sirmium Confession) held that both ''homoousios'' (of one substance) and ''homoiousios'' (of similar substance) were unbiblical and that the Father is greater than the Son. (This confession was later known as the Blasphemy of Sirmium.)
But since many persons are disturbed by questions concerning what is called in Latin ''substantia'', but in Greek ''ousia'', that is, to make it understood more exactly, as to 'coessential,' or what is called, 'like-in-essence,' there ought to be no mention of any of these at all, nor exposition of them in the Church, for this reason and for this consideration, that in divine Scripture nothing is written about them, and that they are above men's knowledge and above men's understanding;
It has been noted also that the Greek term "
homoousian Homoousion ( ; grc, ὁμοούσιον, lit=same in being, same in essence, from , , "same" and , , "being" or "essence") is a Christian theological term, most notably used in the Nicene Creed for describing Jesus (God the Son) as "same in bei ...
", which
Athanasius of Alexandria Athanasius I of Alexandria, ; cop, ⲡⲓⲁⲅⲓⲟⲥ ⲁⲑⲁⲛⲁⲥⲓⲟⲩ ⲡⲓⲁⲡⲟⲥⲧⲟⲗⲓⲕⲟⲥ or Ⲡⲁⲡⲁ ⲁⲑⲁⲛⲁⲥⲓⲟⲩ ⲁ̅; (c. 296–298 – 2 May 373), also called Athanasius the Great, ...
favored, was actually a term that was reported to be put forth and favored also by
Sabellius Sabellius (fl. ca. 215) was a third-century priest and theologian who most likely taught in Rome, but may have been a North African from Libya. Basil and others call him a Libyan from Pentapolis, but this seems to rest on the fact that Pentapolis ...
, and was a term that many followers of Athanasius took issue with and were uneasy about. The Semi-Arians also objected to the term. Their objection to the term "homoousian" was that it was considered to be "un-Scriptural, suspicious, and of a Sabellian tendency." This was because Sabellius also considered the Father and the Son to be "one substance", meaning that, to Sabellius, the Father and Son were "one essential Person" interacting with creation as necessary.


Basil of Ancyra

In the Lent of 358, Basil, along with many bishops, was holding the dedicatory feast of a new church he had built at
Ancyra Ankara ( , ; ), historically known as Ancyra and Angora, is the list of national capitals, capital of Turkey. Located in the Central Anatolia Region, central part of Anatolia, the city has a population of 5.1 million in its urban center ...
when he received a letter from
George of Laodicea George (died 359) was the bishop of Laodicea in Syria from 335 until his deposition in 347. He took part in the Trinitarian controversies of the fourth century. At first an ardent admirer of the teaching of Arius and associated with Eusebius of ...
, relating how Eudoxius had approved of Aëtius, and begging Macedonius of Constantinople, Basil, and the rest of the assembled bishops to decree the expulsion of Eudoxius and his followers from
Antioch Antioch on the Orontes (; grc-gre, Ἀντιόχεια ἡ ἐπὶ Ὀρόντου, ''Antiókheia hē epì Oróntou'', Learned ; also Syrian Antioch) grc-koi, Ἀντιόχεια ἡ ἐπὶ Ὀρόντου; or Ἀντιόχεια ἡ ἐπ ...
, else that great see were lost. In consequence, the
Synod of Ancyra The Synod of Ancyra was an ecclesiastical council, or synod, convened in Ancyra (modern-day Ankara, the capital of Turkey), the seat of the Roman administration for the province of Galatia, in 314. The season was soon after Easter; the year may ...
published a long reply addressed to George and the other bishops of
Phoenicia Phoenicia () was an ancient thalassocratic civilization originating in the Levant region of the eastern Mediterranean, primarily located in modern Lebanon. The territory of the Phoenician city-states extended and shrank throughout their histor ...
in which they recite the Creed of Antioch (341), adding explanations against the "unlikeness" of the Son to the Father taught by the Arians and Anomoeans, (from ''anomoios''), and showing that the very name of father implies a son of like substance (''homoiousios'', or ''homoios kat ousian'') Anathematisms are appended in which Anomoeanism is explicitly condemned and the teaching of "likeness of substance" enforced. The nineteenth of these canons forbids the use also of ''homoousios'' and ''tautoousios''; this may be an afterthought due to the instance of Macedonius, as Basil does not seem to have insisted on it later.
Legate Legate may refer to: *Legatus, a higher ranking general officer of the Roman army drawn from among the senatorial class :*Legatus Augusti pro praetore, a provincial governor in the Roman Imperial period *A member of a legation *A representative, ...
s were dispatched to the Council at Sirmium: Basil, Eustathius of Sebaste, an ascetic of no dogmatic principles, Eleusius of
Cyzicus Cyzicus (; grc, Κύζικος ''Kúzikos''; ota, آیدینجق, ''Aydıncıḳ'') was an ancient Greek town in Mysia in Anatolia in the current Balıkesir Province of Turkey. It was located on the shoreward side of the present Kapıdağ Peni ...
, a follower of Macedonius, and the priest Leontius, one of the emperor's chaplains. They arrived just in time, for the emperor had been lending his ear to a Eudoxian, but he now veered round, issuing a letter (Sozomen, IV, xiv) declaring the Son to be "like in substance" to the Father, and condemning the Arians of Antioch.


Epiphanius of Salamis

In the mid-4th century Epiphanius stated, "Semi-Arians... hold the view of the Son, that he was forever with the Father... but has been begotten without beginning and not in time... But all of these negate, or it has been said, blaspheme the Holy Spirit, and do not count him in the Godhead with the Father and the Son." According to
Sozomen Salamanes Hermias Sozomenos ( grc-gre, Σαλαμάνης Ἑρμείας Σωζομενός; la, Sozomenus; c. 400 – c. 450 AD), also known as Sozomen, was a Roman lawyer and historian of the Christian Church. Family and home He was born arou ...
, at this point
Pope Liberius Pope Liberius (310 – 24 September 366) was the bishop of Rome from 17 May 352 until his death. According to the '' Catalogus Liberianus'', he was consecrated on 22 May as the successor to Pope Julius I. He is not mentioned as a saint in t ...
was released from exile upon signing three formulæ combined by Basil. Basil persuaded Constantius to summon a
general council General council may refer to: In education: * General Council (Scottish university), an advisory body to each of the ancient universities of Scotland * General Council of the University of St Andrews, the corporate body of all graduates and senio ...
,
Ancyra Ankara ( , ; ), historically known as Ancyra and Angora, is the list of national capitals, capital of Turkey. Located in the Central Anatolia Region, central part of Anatolia, the city has a population of 5.1 million in its urban center ...
being proposed, then
Nicomedia Nicomedia (; el, Νικομήδεια, ''Nikomedeia''; modern İzmit) was an ancient Greek city located in what is now Turkey. In 286, Nicomedia became the eastern and most senior capital city of the Roman Empire (chosen by the emperor Diocletia ...
(both in Asia Minor), but as the latter city was destroyed by an earthquake, Basil was again at
Sirmium Sirmium was a city in the Roman province of Pannonia, located on the Sava river, on the site of modern Sremska Mitrovica in the Vojvodina autonomous provice of Serbia. First mentioned in the 4th century BC and originally inhabited by Illyrians an ...
in 359 where the Arianizers had meanwhile regained their footing; with
Germinius of Sirmium Germinius, born in Cyzicus, was bishop of Sirmium, (today the town Sremska Mitrovica, in the territory of Srem in Serbia) and a supporter of Homoian theology, which is often labelled as a form of Arianism. Along with Valens of Mursa and Ursacius of ...
, George of Alexandria, Ursacius and Valens, and bishop (later saint)
Marcus of Arethusa Al-Rastan ( ar, الرستن) is the third largest city in the Homs Governorate, located north of its administrative capital Homs and from Hama. Nearby localities include Talbiseh and al-Ghantu to the south, al-Zaafaraniyah and al-Mashrafah to t ...
, he held a conference which lasted until night. A confession of faith, ridiculed under the name of the "dated creed", was drawn up by Marcus on 22 May (Hilary, "Fragment. xv"). Arianism was of course rejected, but the ''homoios kata ten ousian'' was not admitted, and the expression ''kata panta homoios'', "like in all things", was substituted. Basil was disappointed, and added to his signature the explanation that the words "in all things" meant not only in will, but in existence and being (''kata ten hyparxin kai kata to einai''). Not content with this, Basil, George of Laodicea and others published a joint explanation (Epiph., lxxiii, 12–22) that "in all things" must include "substance".


At Seleucia, 359

The court party arranged that two councils should be held, one at
Rimini Rimini ( , ; rgn, Rémin; la, Ariminum) is a city in the Emilia-Romagna region of northern Italy and capital city of the Province of Rimini. It sprawls along the Adriatic Sea, on the coast between the rivers Marecchia (the ancient ''Ariminu ...
(Italy) and the other at Seleucia. At
Seleucia Seleucia (; grc-gre, Σελεύκεια), also known as or , was a major Mesopotamian city of the Seleucid empire. It stood on the west bank of the Tigris River, within the present-day Baghdad Governorate in Iraq. Name Seleucia ( grc-gre, Σ ...
, in 359, the Semi–Arians were in a majority, being supported by such men as
St. Cyril of Jerusalem Cyril of Jerusalem ( el, Κύριλλος Α΄ Ἱεροσολύμων, ''Kýrillos A Ierosolýmon''; la, Cyrillus Hierosolymitanus; 313 386 AD) was a theologian of the early Church. About the end of 350 AD he succeeded Maximus as Bishop of ...
, his friend
Silvanus of Tarsus Silvanus or Sylvanus may refer to: *Silas (Silvanus), disciple, mentioned in four New Testament epistles *Silvanus (monk), one of the Desert Fathers *Silvanus of the Seventy, a traditional figure in Eastern Orthodox tradition assumed to be one of t ...
and even
Hilary of Poitiers Hilary of Poitiers ( la, Hilarius Pictaviensis; ) was Bishop of Poitiers and a Doctor of the Church. He was sometimes referred to as the "Hammer of the Arians" () and the "Athanasius of the West". His name comes from the Latin word for happy or ...
, but they were unable to obtain their ends. Basil, Silvanus and Eleusius, therefore, went as envoys to Constantinople, where a council was held in 360, which followed Rimini in condemning ''homoiousios'' together with ''homoousios'' and allowed ''homoios'' alone, without addition. This new phrase was the invention of Acacius of Cæsarea, who now deserted the more extreme Arians and became leader of the new "
Homoean The Acacians (), also known as the Homoians or Homoeans (), were an Arianism, Arian sect which played a major role in the Gothic Christianity, Christianization of the Goths in the Danubian provinces of the Roman Empire. They first emerged into ...
" party. He procured the exile of Macedonius, Eleusius, Basil, Eustathius, Silvanus, Cyril and others.
Constantius II Constantius II (Latin: ''Flavius Julius Constantius''; grc-gre, Κωνστάντιος; 7 August 317 – 3 November 361) was Roman emperor from 337 to 361. His reign saw constant warfare on the borders against the Sasanian Empire and Germani ...
died in 361. Under Julian the exiles returned. Basil was probably dead. Macedonius organized a party which confessed the Son to be ''kata panta homoios'', while it declared the Holy Ghost to be the minister and servant of the Father and a creature. Eleusius joined him, and so did Eustathius for a time. This remnant of the Semi-Arian party held synods at
Zele Zele () is a municipality located in the Belgian province of East Flanders, around 20 km east of Ghent. The municipality only comprises the town of Zele proper. In 2021, Zele had a total population of 21,333. The total area is 33.06 km2 ...
and elsewhere. The accession of
Jovian Jovian is the adjectival form of Jupiter and may refer to: * Jovian (emperor) (Flavius Iovianus Augustus), Roman emperor (363–364 AD) * Jovians and Herculians, Roman imperial guard corps * Jovian (lemur), a Coquerel's sifaka known for ''Zoboomafo ...
, who was orthodox, induced the versatile Acacius, with
Meletius of Antioch Saint Meletius (Greek: Μελέτιος, ''Meletios'') was a Christian bishop of Antioch from 360 until his death in 381. He was opposed by a rival bishop named Paulinus and his episcopate was dominated by the schism, usually called the Meletian ...
and twenty-five bishops, to accept the Nicene formula, adding an explanation that the Nicene Fathers meant by ''homoousios'' merely ''homoios kat ousian'' – thus Acacius had taken up the original formula of the Semi-Arians. In 365 the Macedonians assembled at
Lampsacus Lampsacus (; grc, Λάμψακος, translit=Lampsakos) was an ancient Greek city strategically located on the eastern side of the Hellespont in the northern Troad. An inhabitant of Lampsacus was called a Lampsacene. The name has been transmitt ...
under the presidency of Eleusius and condemned the Councils of Ariminum and Antioch (in 360), asserting again the likeness in substance. But the threats of the Arian emperor
Valens Valens ( grc-gre, Ουάλης, Ouálēs; 328 – 9 August 378) was Roman emperor from 364 to 378. Following a largely unremarkable military career, he was named co-emperor by his elder brother Valentinian I, who gave him the eastern half of ...
caused Eleusius to sign an Arian creed at Nicomedia in 366. He returned to his diocese full of remorse, and begged for the election of another bishop, but his diocesans refused to let him resign. The West was at peace under
Valentinian I Valentinian I ( la, Valentinianus; 32117 November 375), sometimes called Valentinian the Great, was Roman emperor from 364 to 375. Upon becoming emperor, he made his brother Valens his co-emperor, giving him rule of the eastern provinces. Vale ...
, so the Semi-Arians sent envoys to that emperor and to the pope to get help. Pope Liberius refused to see them until they presented him with a confession of faith which included the Nicene formula. He seems to have been unaware that the party now rejected the divinity of the Holy Ghost; but this was perhaps not true of the envoys Eustathius and Silvanus. On the return of the legates, the documents they brought were received with great joy by a synod at
Tyana Tyana ( grc, Τύανα), earlier known as Tuwana (Hieroglyphic Luwian: ; Akkadian: ) and Tuwanuwa ( Hittite: ) was an ancient city in the Anatolian region of Cappadocia, in modern Kemerhisar, Niğde Province, Central Anatolia, Turkey. It was ...
, which embraced the Nicene faith. But another synod in
Caria Caria (; from Greek: Καρία, ''Karia''; tr, Karya) was a region of western Anatolia extending along the coast from mid-Ionia (Mycale) south to Lycia and east to Phrygia. The Ionians, Ionian and Dorians, Dorian Greeks colonized the west of i ...
still refused the ''homoousion''.


Council of Constantinople and after

In 381 the
First Council of Constantinople The First Council of Constantinople ( la, Concilium Constantinopolitanum; grc-gre, Σύνοδος τῆς Κωνσταντινουπόλεως) was a council of Christian bishops convened in Constantinople (now Istanbul, Turkey) in AD 381 b ...
was also called in order to attempt to deal with the binitarians who were mainly Semi-Arians then. However, as the Trinity was officially finalized at this time, the offended binitarians walked out. For the rest of the history of the Semi-Arians (they were also called Macedonians); see
Pneumatomachi The ''Pneumatomachi'' (; grc-gre, Πνευματομάχοι ''Pneumatomákhoi''), also known as Macedonians or Semi-Arians in Constantinople and the Tropici in Alexandria, were an anti-Nicene Creed sect which flourished in the regions adjacent t ...
. Also, in more modern times, Semi-Arian groups are said to include non-Trinitarian groups such as
Jehovah's Witnesses Jehovah's Witnesses is a millenarian restorationist Christian denomination with nontrinitarian beliefs distinct from mainstream Christianity. The group reports a worldwide membership of approximately 8.7 million adherents involved in ...
and Creation Seventh Day Adventists.THE DOCTRINE OF THE TRINITY AMONG ADVENTISTS
- Biblical Research Institute - 14 June 2014.


See also

*
Councils of Sirmium The Councils of Sirmium were the five episcopal councils held in Sirmium in 347, 351, 357, 358 and finally in 375 or 378. The third—the most important of the councils—marked a temporary compromise between Arianism and the Western bishops of the ...
*
Arianism Arianism ( grc-x-koine, Ἀρειανισμός, ) is a Christological doctrine first attributed to Arius (), a Christian presbyter from Alexandria, Egypt. Arian theology holds that Jesus Christ is the Son of God, who was begotten by God ...
*
Arius Arius (; grc-koi, Ἄρειος, ; 250 or 256 – 336) was a Cyrenaic presbyter, ascetic, and priest best known for the doctrine of Arianism. His teachings about the nature of the Godhead in Christianity, which emphasized God the Father's un ...
*
Athanasius Athanasius I of Alexandria, ; cop, ⲡⲓⲁⲅⲓⲟⲥ ⲁⲑⲁⲛⲁⲥⲓⲟⲩ ⲡⲓⲁⲡⲟⲥⲧⲟⲗⲓⲕⲟⲥ or Ⲡⲁⲡⲁ ⲁⲑⲁⲛⲁⲥⲓⲟⲩ ⲁ̅; (c. 296–298 – 2 May 373), also called Athanasius the Great, ...
*
Macedonius I of Constantinople Macedonius (Greek: Μακεδόνιος; died after 360) was a Greek bishop of Constantinople from 342 up to 346, and from 351 until 360. He inspired the establishment of the Pneumatomachi (also called Macedonians), a sect later declared heretical ...
*
Eusebius of Nicomedia Eusebius of Nicomedia (; grc-gre, Εὐσέβιος; died 341) was an Arian priest who baptized Constantine the Great on his deathbed in 337. A fifth-century legend evolved that Pope Saint Sylvester I was the one to baptize Constantine, but this ...
*
Nontrinitarianism Nontrinitarianism is a form of Christianity that rejects the mainstream Christian doctrine of the Trinity—the belief that God is three distinct hypostases or persons who are coeternal, coequal, and indivisibly united in one being, or essenc ...
*
Creation Seventh Day Adventist Church The Creation Seventh Day (and) Adventist Church began as a small group that broke off from the Seventh-day Adventist Church in 1988, and organized its own church in 1991. It has been involved in court cases with the General Conference of Seventh ...


References


Sources

*Basilius of Ancyra, Eleusius, Eustathius of Sebaste by VENABLES in Diction. Christ. Biog. *LICHTENSTEIN, Eusebius von Nikomedien (Halle, 1903) * LOOFS, Eustathius von Sebaste und die Chronologie der Basilius-Briefe (Halle, 1898).


External links


Article on Semi-Arianism
from the
Catholic Encyclopedia The ''Catholic Encyclopedia: An International Work of Reference on the Constitution, Doctrine, Discipline, and History of the Catholic Church'' (also referred to as the ''Old Catholic Encyclopedia'' and the ''Original Catholic Encyclopedia'') i ...
{{Heresies condemned by the Catholic Church Nontrinitarianism Arianism Christian terminology Nature of Jesus Christ