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The Lessons of the First Ecumenical Council of Nicea

It can be tempting to look back through rose-colored glasses on the “early, undivided Church” and imagine that things were perfect. Yet the reality is quite different.

Detail of an icon from the Mégalo Metéoron Monastery in Greece, of the First Ecumenical Council of Nicaea. (Image: Wikipedia)

May 20 marked the 1700th anniversary of the beginning of the Council of Nicea in 325 A.D. June 19 marks the date of the drawing up of the “Symbol” or “Nicene Creed,” the first draft of what would later become a part of the Eucharistic liturgy for the universal Church. August 19 is generally accepted as the close of the council.

The celebration of the First Ecumenical Council is an occasion not merely to look back on a seminal event of the Church’s past, but to meditate on how Christ has continued to work and will work in His Church till the end of time.

Looking back at the history itself is useful. It can be tempting to look back through rose-colored glasses on the “early, undivided Church” and imagine that things were perfect. Yet the reality is quite different. The Church of the first three centuries was a body often persecuted by the Roman government. This persecution was sporadic, and scholars debate the details and severity of the various instances. But Christians had to be vigilant. The new and underground Church was illegal, and Roman law was a consistent threat.

The Emperors Constantine and Licinius (Rome did not have a single emperor at the time) granted official toleration to open Christian practice in the 313 A.D. Edict of Milan. The new freedom given to the Church was wonderful. Rome’s removal of an external threat allowed the Church to breathe. Yet now an internal threat arose: the new teaching of the priest Arius of Alexandria.

Arius’s teaching was not to break the peace of the Church and violate the rule of faith that had been handed down by the Apostles. A Roman presbyter in the early 100s named Marcion had attempted to teach that the God of the Old Testament was definitely not the God of the New Testament. The former was like the Platonic demiurge (“craftsman” in Greek); the latter was the real God, who was all-powerful. Like Thomas Jefferson centuries later, Marcion edited biblical books. Some think he was the first compiler of a New Testament canon: he chose ten letters of St. Paul and only St. Luke’s Gospel, which he edited to expunge anything that made Jesus look like he had a connection with the Jewish God. In Marcion’s wake were various other Gnostic groups, all trying to make sure nobody thought Jesus was truly human. In the first few centuries of the Church, it might be said that it was harder to believe Jesus was human than that he was divine, albeit some sort of emanation from a supreme being.

So, even amid the external threats to the Church, there were always internal threats to the Church’s life and belief about what was most important: the question of who Jesus is. But Arius’s thought had a different kind of appeal. Not tangled up in strange mythologies as some of the oddball Gnostic sects were, the Egyptian priest’s theories were proposed as biblical and logical. God is one and His essence cannot be shared. The Son, he said, was the highest being in all of God’s creation. As such, he would certainly reflect God’s goodness, but he was ultimately a creature—the highest angel, if you will, created in time and not begotten.

Arius’s teachings had riled up the entire Church in Egypt and had spread well beyond by the early 320s. Around 320, Alexander, Bishop of Alexandria, had called a local council of Egyptians and Libyans to deal with Arius’s teachings. They condemned them, but Arius continued to serve as a priest. When he was finally run out of his own church, he went on to Palestine and Nicomedia (in present-day Turkey). The Emperor Constantine, who had by 322 conquered Emperor Licinius to gain sole control over the entire Roman Empire, decided that these religious disputes within the Christian Church required a settlement. Like any good politician, he encouraged everyone to shake hands and come to agreement—not realizing how serious the questions were. When this didn’t work, he decided to call for a universal or ecumenical council to settle the matter.

Did he consult with the Bishop of Rome, Pope (Saint) Sylvester? Quite possibly. In any case, the pope agreed to the meeting and sent two legates to this council held in Nicea (also rendered Nicaea), the modern-day city of Iznik, Turkey. There were, St. Athanasius tells us, 318 bishops present. The number was seen as significant because it is the same number of servants that Abraham took to rescue his nephew Lot in Genesis 14. Many other priests and deacons also attended. Most important was that young Egyptian deacon already named—Athanasius—who would go on to speak powerfully at the council and become one of the great theologians of the Church.

Interestingly, there were even Christian bishops from outside the Roman Empire. By the fourth century, Christianity was more universal than Rome! The emperor presided over the proceedings, though when they got to the theological debates, his participation was limited. The accounts we have tell us that Arius was able to present his case to the assembled. The story that St. Nicholas punched him is probably apocryphal, but the story represents the strong reaction of those assembled to this theory. They may have been impressed with Arius’s biblical acumen, but they judged his theory on the basis of the Tradition of the Church passed down to understand the scriptures. The Tradition held that the Son was no mere creature, did not merely share a unity of will with the Father, and did not begin in time.

The fathers of the Council of Nicea drew up a creed in order to restate the orthodox view. That creed included a new term that was not biblical: homoousios. It meant one in being or substance, consubstantial. The Son’s unity with the Father involved his very essence. Though some of the “semi-Arians” had presented a compromise term, homoiousios, of like or similar substance, it was rejected in favor of the one we know because only homoousios was the truth about the Son who was begotten and not made, very God of very God. In the end, all but two bishops voted for this understanding: Jesus is one in being with the Father.

After that creed had been drawn up, the assembled bishops turned to more practical matters. They passed twenty canons dealing with disciplinary matters. We know that many of these disciplinary canons were not necessarily accepted. The second canon prohibits new converts from taking ecclesial office. We know, however, that later in the century, the catechumen Ambrose would be initiated into the Church and ordained only after being chosen as the new bishop of Milan. The fifteenth canon condemns bishops, priests, or deacons from moving from city to city. The desire to climb the greasy ecclesiastical pole to richer and more important places has always been with us.

One important lesson from the Council of Nicea is that many of our problems have always been with us. And because times change, we must remember that the Church’s disciplines may have to change to accommodate new situations. Disciplinary canons are not infallible.

Even on the topic of doctrine, however, we have to remember that the orthodox teaching of this council was not accepted right away. Indeed, Arianism seemed to go from strength to strength over the next few decades. St. Athanasius’s life was a series of adventures defending the orthodox teaching while being chased down by Arian supporters. We really need a great film or series about the adventures of Athanasius, defender of the faith against Arians, who did not stop just because the Council told them to. Decades after the council, St. Jerome wrote, “The whole world groaned, and was astonished to find itself Arian.”

Indeed, the lesson of the Council of Nicea is that the Church has the ability to decide the truth of matters, but there is no guarantee that this truth will be accepted by all her members, perhaps especially not her clergy. It was not until at least the Second Ecumenical Council of Constantinople in 381 that the Church had (kind of) put the Arian Crisis behind her. It was at this council that the fathers took out that old creed from Nicea, edited it, and filled in some of the gaps, this time specifying not only the divinity of the Son but also the Holy Spirit in language that could not be mistaken.

When we are tempted to long for those halcyon days of yore, let us remember that God does his greatest work even amid the very mixed use of free will by men and women who are still themselves in the process of gaining holiness. The Council of Nicea is a testimony to the ways in which the Lord will lead us to truth, but will not save us from the need to contend for it. Nor will He solve all our practical problems right away. That’s all right, for this is the way in which He forges saints out of young Egyptian deacons…and you and me.


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About David Paul Deavel 49 Articles
David Paul Deavel is Associate Professor of Theology at the University of St. Thomas in Houston, TX, and Senior Contributor at The Imaginative Conservative. The paperback edition of Solzhenitsyn and American Culture: The Russian Soul in the West, edited with Jessica Hooten Wilson, is now available in paperback.

10 Comments

  1. Nice summary. I didn’t fully understand the issues requiring the Council of Nicea until I read a book titled “The Apostacy that Wasn’t”. In a sense it is scary to learn how solid church men had such a dispute.

    • Dear GRM, it is always shocking when shepherds turn out to be wolves in disguise.

      Today it’s a plague but even at the start of The Church this was a problem.

      Ephesians 20:30 has Paul prophesying over the leaders –
      “Even from your own ranks there will be men coming forward with a travesty of the truth on their lips to induce the disciples to follow them. So be on your guard . . ”

      Perhaps this is why our LORD insisted: “Nor must you allow yourselves to be called teachers, for you have only one teacher, THE CHRIST.” Matthew 23:10b

      Jesus is passioante about this for in verses 28 & 33 He emphasizes that hypocrissy is no small sin: “. . you appear to people as righteous but on the inside you are full of hypocrissy and wickedness.” “You snakes! You brood of vipers! How will you escape being condemned to Hell?” These are warning words, spoken in love.

      Yet today, how many Catholic & other Christian ‘teachers’ insist there is no Hell!

      In Ephesians 5:11, Paul urges authentic Catholics to expose these futile works of darkness. Ezekiel 3:18-21 goes so far as to caution us that we will be held responsible if we do not bravely warn those who are engaged in wickedness & disobedience to GOD’s Word.

      CWR has a great record of courageously obeying our LORD’s path of speaking truth.

      In 2 Corinhians 13:8, Saint Paul instructs:
      “We have no power to resist the truth, only to further it.”

      Then there are those who ask: “Whose truth?”
      Answer: Jesus Christ is THE TRUTH and HIS HOLY SPIRIT will guide us into ALL TRUTH.
      The Catechism of the Catholic Church, by citing The New Testament over 3,500 times, shows us directly how we should discover THE TRUTH that saves us & enables us to decide when a leader is actually a wolf or snake or viper on their way to Hell!

      What is difficult about that? Jesus’ yoke is easy & His burden is light.
      By neglecting to saturate ourselves in THE GOSPEL OF TRUTH given to us by our One-and-Only Teacher, so many among us remain painfully yoked & catastrophically burdened. That’s not God’s fault, not even The Church’s fault, but ours.

      Always seeking to hear & lovingly obey King Jesus Christ; blessings from marty

        • Thanks, dear Jack; you are so right.

          As it should be (and maybe would be if it were not for so many generations of smart individuals wanting to make a name for themselves!) since GOD does not share His Glory!

          Do many of our current Catholic wise thinkers believe that?
          What do they teach our students and seminarians?

          One might hope & pray it is The Nicene Creed (which we repeat together at Holy Mass) with its emphasis on the unseen, Heavenly Holy Trinity and the reality of things existing before all ages, calling us to resurrection & incorporation in that, presently unseen, eternally glorious Kingdom of Christ.

          ‘At that time Jesus said: “I thank you FATHER, Lord of Heaven and Earth, because You have hidden these things from the wise & inelligent and have revealed them to infants. Yes, FATHER, for such was Your gracious will.”‘
          Matthew 11:25-26 NRSV

          “But GOD chose what is foolish in the world to shame the wise; GOD chose what is weak in the world to shame the strong; GOD chose what is low & despised in the world, things that are not, to reduce to nothing things that are. So that no one might boast in the presence of GOD.” 1 Corinthians 1:27-29 NRSV

          “By faith we understand that the ages were completely equipped by GOD’s spoken words in such a way that things which are seen came into being from things which were not made to appear.” Hebrews 11:3 The Source New Testament

          In other words, the hidden origins of all things can only be known by GOD’s inspiration, and GOD has a marked preference for the uncomplicated, infantlike faith of simple believers, who find The Gospel clear-cut & easy; and are thus mocked & despised by the world & its clever thinkers. This unregenerate world that mocked & despised, and punished & rejected our sinless King Jesus Christ.

          Is it any surprise the Beloved Fisherman, Apostle John, was inspired to see the current universe done away with, to be replaced with: “. . a new heaven and a new earth”. Revelation 21:1

          According to the author of the book of Hebrews, as far back as Abraham’s days – from the beginnings of humanity’s sincere faith in GOD: “. . they desire a better country, that is a heavenly one. Therefore GOD is not ashamed to be called their GOD; indeed He has prepared a city for them.” Hebrews 11:16 NRSV

          And, thanks to Beloved Apostle John we know of the pre-existence of: “. . the Holy City Jerusalem, coming down out of Heaven from GOD.” Revelation 21:10 NRSV An eternal reality beyond human intelligence & reasoning –

          ‘Do not deceive yourselves. If you think that you are wise in this age, you should become fools so that you may become wise. For the wisdom of this world is foolishness with GOD. For it is written: “HE catches the wise in their craftiness” . . . 1 Corinthians 3:18-19 NRSV

          Let’s contemplate Catechism of the Catholic Church 1027: “The mystery of blessed communion with GOD and all who are in Christ is beyond all understanding and description.”

          Before anything else: a Catholic Christian is a believer, a conserver, and communicator of all that GOD in Christ and The Holy Spirit has revealed to us.
          Only secondarily, are we enquirers into meanings & implications.

          If we reverse that order, we can no longer claim to be Catholic or Christian.

          [This response became bigger than I planned. Hoping it is of some use.]

          Ever in the love of The Lamb of GOD; with blessings from marty

  2. We read: “[Arius] chose ten letters of St. Paul and only St. Luke’s Gospel;” and “[from Arius] God is one and His essence cannot be shared;” and “[the Council] “judged his theory on the basis of the Tradition of the Church.”

    Three points:

    FIRST, Arius used only Luke’s Gospel because Luke was the only one of the four evangelists who had been a Gentile and not a Jew.
    Arius rejected the immediacy (!) of the Triune God who had favored and actually spoken to the Chosen People (more than just another tribal narrative), and then “in the fullness of time” came into universal human history as the Incarnation, and now is spread into the perennial Catholic Church as began at Pentecost.

    SECOND, by insisting on the monolithic monotheism, Arius resembles Muhammad who treats Christ in the same way (partly scandalized by Byzantine factionalism).
    And, resembles Islam in general which regards the “dictated” Qur’an as of the very essence of God. (The symmetrical comparison between Christianity and Islam is NOT between the two scriptures, but between the incarnate Christ [St. John’s “the Word made flesh”] and the Qur’an [Islam’s “word made book”]).

    THIRD, about the Triune nature of GOD—Athanasius providentially anticipated Arius, in his recollection of the astonishing Tradition in his “De Incarnatione Verbi Dei” (probably A.D. 317).
    Today it’s the astonishing nature of MAN which is under nuanced deconstruction, if not doctrinally then “pastorally”—in step with the current zeitgeist. And, providentially, St. John Paul II already has given us “Veritatis Splendor” (AD 1993)—defending the inborn and universal natural law and moral absolutes.

    SUMMARY: While Nicaea was an inclusive “synod [of bishops],” the bishops were also exclusive (!)—that is, they rejected the comfortable and more manageable reductionism imagined by Arius.

  3. We read: “[Arius] chose ten letters of St. Paul and only St. Luke’s Gospel;” and “[from Arius] God is one and His essence cannot be shared;” and “[the Council] “judged his theory on the basis of the Tradition of the Church.”

    Three points:

    FIRST, Arius used only Luke’s Gospel because Luke was the only one of the four evangelists who had been a Gentile and not a Jew.
    Arius rejected the immediacy (!) of the Triune God who had favored and actually spoken to the Chosen People (more than just another tribal narrative), and then “in the fullness of time” came into universal human history as the Incarnation, and now is spread into the perennial Catholic Church as began at Pentecost.

    SECOND, by insisting on the monolithic monotheism, Arius resembles Muhammad who treats Christ in the same way (partly scandalized by Byzantine factionalism).
    And, resembles Islam in general which regards the “dictated” Qur’an as of the very essence of God. (The symmetrical comparison between Christianity and Islam is NOT between the two scriptures, but between the incarnate Christ [St. John’s “the Word made flesh”] and the Qur’an [Islam’s “word made book”]).

    THIRD, about the Triune nature of GOD—Athanasius providentially anticipated Arius, in his recollection of the astonishing Tradition in his “De Incarnatione Verbi Dei” (probably A.D. 317).

    Today it’s the astonishing nature of MAN which is under nuanced deconstruction, if not doctrinally then “pastorally”—in step with the current zeitgeist. And, providentially, St. John Paul II already has given us “Veritatis Splendor” (AD 1993)—defending the inborn and universal natural law and moral absolutes.

    SUMMARY: While Nicaea was an inclusive “synod [of bishops],” the bishops were also exclusive (!)—that is, they rejected the comfortable and more manageable reductionism imagined by Arius.

  4. It’s important to remember that the Council of Nicea was convened by Constantine’s adviser, Hosius, the Bishop of Cordoba.

  5. A further disproof of the idea that the early Church was undivided is the fact that some of the Germanic tribes or rather nations outside the Roman Empire were converted by Arians, and so when they successfully invaded and ruled parts of the Empire the religion of the new rulers was Christianity, but not orthodox Nicean Christianity but heretical Arianism.

  6. To deny The Divinity of Christ, is, to deny The Divinity Of The Most Holy Blessed Trinity, in The Unity of The Holy Ghost, The Spirit Of Perfect Divine Eternal Love Between The Father And His Only Begotten Son Who Proceeds From Both The Father And His Only Begotten Son, Jesus The Christ.

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