Emperor Theodosius wiped out Arianism among the Roman people in 380.

SUMMARY OF THIS ARTICLE

Constantine had a decisive influence on the formulation of the Nicene Creed but later reversed his position. Constantine’s successors crushed the Nicene party.  When emperor Valens died in 378, the imperial capital was solidly Arian.

Theodosius I succeeded Valens.  He was a passionate supporter of the Nicene Creed.  Commentators often refer to the Council of Constantinople of 381 as the turning point where Arianism was replaced by Nicene Christology, but that council was a mere formality.  Already prior to the council, Theodosius outlawed all other forms of Christianity and exiled Arian bishops.  Furthermore, Arians were not allowed to attend the Council of 381.

The 381 Council, therefore, was simply a formality.  The real decisions were taken by the Roman Emperor. Theodosius, with the strong arm of the empire, effectively wiped out Arianism among the ruling class and elite of the Eastern Empire.  This supports again the main thesis of this article series, namely that the emperors had a decisive influence on the Christology of the church.

The 381 Creed does not contain the Trinity concept (that the Father, Son and Holy Spirit are one Being).  But Theodosius’ Edict of Thessalonica of 380 does prescribe Trinitarian theology.  In other words, the State laws were Trinitarian while the CHURCH CREEDS LAGGED BEHIND. This also supports the thesis that the Christology of the church was determined by the emperors.

In the period after Theodosius, the church formulated the doctrines of Mary as the Mother of God and that Christ had distinct divine and human natures that were neither commingled nor divided and that were equally present in one person. 

Articles in this series include the following:

Christology of the persecuted church – first 300 years
Council of Nicaea – A.D. 325 
The Nicene Creed Interpreted
Fourth Century Arianism

What did Arianism believe in the fourth century?
Long Lines Creed – one of the creeds during the Arian period
Death of Arianism among the Roman people – Current Article

The massacres of the Waldensians. – Middle Ages

THE EMPIRE WAS SOLIDLY ARIAN.

As discussed in the article on Fourth Century Arianism, Constantine had a decisive influence on the formulation of the Nicene Creed.  He forced the council of Nicaea to accept the key term Homoousios and to condemn Arianism.  However, just a few years later, Constantine reversed his position, banished the main promotor of the Nicene Creed (Athanasius) and allowed the Arian bishops who were exiled after Nicaea, to return. 

Constantine’s son and successor, Constantius II, was openly Arian.  At first, Constantius only ruled in the east, but by the year 353, he became the sole ruler of the empire.  He crushed the Nicene party, forcing the western bishops to abandon Athanasius and exiling leaders of the Nicene party.

The next emperor (Julian) did not choose sides, but he ruled only for three years.

Valens (364–378) succeeded Julian and revived Constantius’ anti-Nicene policy.  He also exiled Nicene bishops to the other ends of the empire and often used force against them.  Consequently, when Valens died in the year 378, the imperial capital of the empire (Constantinople), which by then has existed for 50 years, WAS SOLIDLY ARIAN.

THEODOSIUS WIPED OUT ARIANISM.

Theodosius I succeeded Valens.  He and his wife Flacilla were passionate supporters of the Nicene Creed.  Flacilla was instrumental in Theodosius’ campaign to end Arianism.  Sozomen reports an incident where she prevented a meeting between Theodosius and Eunomius of Cyzicus, who served as figurehead of the most radical sect of Arians.  Ambrose and Gregory of Nyssa praised her Christian (Roman Catholic Encyclopedia (1909), article “Ælia Flaccilla” by J.P. Kirsch)..

Commentators often refer to the First Council of Constantinople, which Theodosius convened in the spring of 381, as the turning point where Arianism was replaced by Nicene Christology, but that council was a mere formality:

Firstly, Theodosius already on 27 February 380, with the Edict of Thessalonica (see Definition of orthodoxy in Theodosius I) decreed that Homoousian Christianity (the Nicene Creed) will be the only legal religion of the Roman Empire and that Christians teaching contrary views will be punished.  By means of this edict, Theodosius outlawed all other forms of Christianity.

Secondly, the incumbent bishop of Constantinople was an Arian. Two days after Theodosius arrived in Constantinople, on 24 November 380, and therefore also prior to the First Council of Constantinople in the spring of 381, he exiled the Arian bishop and appointed Gregory of Nazianzus, the leader of the rather small Nicene community in the city, as bishop over the churches of that city.

Thirdly, only supporters of the Nicene Creed were allowed into the Council of 381.  The previous Arian bishop and leaders were already banished and Arians arriving to attend the council were denied admission.

The 381 Council, therefore, was simply a formality.  Theodosius, with the strong arm of the empire, effectively wiped out Arianism from the Roman Empire.  

EDICT OF THESSALONICA

The edict stated:

According to the apostolic teaching and the doctrine of the Gospel, let us believe in the one deity of the Father, the Son and the Holy Spirit, in equal majesty and in a holy Trinity.

We authorize the followers of this law to assume the title of Catholic Christians; but as for the others, since, in our judgment, they are foolish madmen, we decree that they shall be branded with the ignominious name of heretics, and shall not presume to give to their conventicles (places of worship) the name of churches. They will suffer in the first place the chastisement of the divine condemnation and in the second the punishment of our authority which in accordance with the will of Heaven we shall decide to inflict. — Edict of Thessalonica (Documents of the Christian Church, Henry Bettenson, editor, 1967, p. 22)

The term “Catholic” in this quote probably means ‘universal’.  The word “Catholic” only became part of the name of that denomination in 1054, at the East-West schism.

Summarized, Church historian Sozomen reports as follows on the Edict of Thessalonica:

Gratian bestowed the government of Illyria and of the Eastern provinces upon Theodosius. The parents of Theodosius were Christians and were attached to the Nicene doctrines.  Theodosius made known by law his intention of leading all his subjects to the reception of that faith which was professed by Damasus, bishop of ROME, and by Peter, bishop of ALEXANDRIA. He enacted that the title of “Catholic Church” should be exclusively confined to those who rendered EQUAL HOMAGE to the Three Persons of the Trinity and that those individuals who entertained opposite opinions should be treated as heretics, regarded with contempt, and delivered over to PUNISHMENT. (Sozomen’s Church History VII.4)

FIRST COUNCIL OF CONSTANTINOPLE

It was practice, in the fourth century, that emperors, as the real heads of the church, appoint church leaders and convene church councils.  Theodosius convened the First Council of Constantinople in the spring of 381.  It is also known as the Second Ecumenical Council.  ‘Ecumenical’ means it represents all Christian Churches and perspectives, but that was certainly not the case in this instance:

Arianism has already been outlawed the previous year, with the threat of punishment for people that teach anything different.

Gregory of Nazianzus—the leader of the Nicene party in the city—presided over part of the Council and vehemently opposed any compromise with the Homoiousians.  (Wikipedia, see note 17Lewis Ayres – Nicaea and its legacy: an approach to fourth-century Trinitarian theology)

Arians were not admitted into the council.  The previous Homoiousian bishop and leaders were already banished.  And 36 Pneumatomachians arrived to attend the council but were denied admission when they refused to accept the Nicene Creed.

Gregory resigned from his office and Nectarius, an unbaptized civil official, was chosen to succeed Gregory as president of the council (Wikipedia, also note 17).  Nectarius, as a civil servant, was fully under Theodosius’ control.

The Council confirmed Theodosius’ installation of Gregory Nazianzus as Bishop of Constantinople, accepted the Niceno-Constantinopolitan Creed of 381 and dogmatically condemned of all shades of Arianism as heresy. 

CONTENTS OF THE CREED OF 381

THE HOLY SPIRIT IN THE 381 CREED

The 325 Creed merely mentions the Holy Spirit in connection with the Father and Son.  It does not refer to the Holy Spirit as God or of the same substance as the Father. 

The 381 Creed goes much further.  The 5 words about the Holy Spirit in the Nicene Creed of 325 became 33 words in the creed of Constantinople, saying that the Holy Ghost is “the Lord and Giver of life,” that He proceeds from the Father and that He is worshiped together with the Father and the Son.  The 381 Creed therefore describes the Holy Spirit much clearer as a separate Person and as God.

The HarperCollins Encyclopedia of Catholicism, “God,” p. 568, states that the teaching of the three Cappadocian Fathers “made it possible for the Council of Constantinople (381) to affirm the divinity of the Holy Spirit, which up to that point had nowhere been clearly stated, not even in Scripture.

Note: Catholics are not concerned if their doctrines are not found in the Bible because they believe in continued revelation through the church.

THE TRINITY IN THE 381 CREED

As discussed in the article What did Arians believe in the fourth century, the present writer does not find the Trinity concept (namely that the Father, Son and Holy Spirit are one Being) in the Nicene Creed.  It is also absent from the creed of 381.  (See the Comparison between the creed of 325 and 381.) 

However, the Edict of Thessalonica of 380, quoted above, which was an act of law by the emperor, made Trinitarian theology law:

“Let us believe in the one deity of the Father, the Son and the Holy Spirit.”

An edict which Theodosius issued after the Council of 381 is also clearly Trinitarian:

“We now order that all churches are to be handed over to the bishops who profess Father, Son and Holy Spirit of a single majesty, of the same glory, of one splendour” (quoted by Richard Rubenstein, When Jesus Became God, 1999, p. 223).

In other words, the State laws were Trinitarian while the church creeds lagged behind.  The first clear Trinitarian church statement is the Athanasian Creed which was formulated perhaps 100 years later.  This supports the thesis of these articles, namely that the decisions, with respect to which Christology the church will adopt, was made by the emperors; not by ecumenical councils.

POST-381 TRINITY DEVELOPMENT 

MOTHER OF GOD

In the period after Theodosius crushed Arianism, the church formulated the doctrine of Mary as the Mother of God.  Britannica reports:

Nestorius, patriarch of Constantinople, taught that Mary, the mother of Jesus Christ, may not properly be called mother of God (Greek Theotokos, or “God-bearer”), because she was the mother only of the human Jesus, not of the preexistent Word of God.  The Council of Ephesus (431) condemned this teaching. 

This matter, and its relationship with the Trinity doctrine, has not been further investigated for this article.  According to the 381 Creed, the “Lord Jesus Christ” has been “begotten of the Father.”  In what way Mary may the called mother of God and how this relates to the Trinity doctrine is unclear.

TWO NATURES OF CHRIST

The Arians objected to the creeds of 325 and 381 by asking, if the Son is of the same nature as the Father, why did He say that He does not know the day and hour of His return?  Why does only the Father knows that (Mat. 24:36)?  And why did Jesus say that He only do and say what the Father gave Him to do and say (e.g. John 5:30; 8:28).  Do such statements not imply that He is subordinate to the Father?  In response to such questions, the church developed the teaching that Christ had two natures:

But this council (of Ephesus) gave rise to monophysitism, which taught that Christ only had one nature.  It emphasized Christ’s divine nature to such an extent that it effectively negated Christ’s humanity.  It compared the relationship between Christ’s humanity and his divinity to a single grain of sugar in the ocean. Pope Leo I (reigned 440–461) led a reaction against this monophysite doctrine that culminated in the Council of Chalcedon (451). This council concluded that Christ had two distinct natures that were neither commingled nor divided and that were equally present in one person.  (Britannica)

See also the Wikipedia article on the Council of Chalcedon

The key word in the quote from Britannica is perhaps “equally.”  The argument is that Christ’s subordination statements in the New Testament must be understood as Him speaking from His human nature. 

Most Christians today accept the dual nature theory.  Opponents of this theory point out that this does not solve the problem, but makes it worse, for it means that Jesus was not telling the truth when He said that He does not know, for in His divine nature He actually knew.

CHALCEDONIAN SCHISM

The decisions at Chalcedon led to the Chalcedonian Schism.  The patriarchates of Rome, Constantinople, Alexandria, Antioch and Jerusalem accepted the decisions of the council but the Egyptian (Coptic) and Syrian, Ethiopian and Armenian Christians rejected the Chalcedonian formula:

They declared that Christ’s human and divine natures, while distinct, were equally present through the mystery of the Incarnation in a single person.   (Britannica)

In other words, they maintained that divinity and humanity are united in one undivided nature in Jesus Christ.

ATHANASIAN CREED

It was the Athanasian Creed—formulated around the year 500, which gave or take 50 years—which became the standard formulation of the Trinity theory throughout the middle ages.  Still today, it is used by many denominations in liturgy and confessions.  This creed was not written by Athanasius.  He died much earlier.  Neither was this a creed, for it was not produced by any known council.

The problem with the previous creeds is that they define the Father alone as God, but then proceed to elevate the Son and the Holy Spirit to the same level as the Father.  This may mean that we have three Gods (polytheism), while the Bible is strictly monotheistic.  The Athanasian Creed, for the first time, strongly and repeatedly emphasizes the oneness of the Father, Son and Holy Spirit in a single Being.  It declares that they together are the one God of the Bible.  For example:

So the Father is God; the Son is God; and the Holy Ghost is God. And yet they are not three Gods; but one God.”

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