The Ascending Church: A Theodosius and the Council of Constantinople

depiction of the Council of Constantinople

Emperor Theodosius, who lived from 347–395, was a man with a singular ambition: to unite the Roman Empire not just politically, but spiritually, under the banner of Nicene Christianity.1 Upon ascending the throne in 379 AD, he sought to consolidate the church under the affirmation of the Nicene Creed.  Theodosius assembled 150 bishops in 381 AD to settle the Arian controversy, which had put the very doctrine of the Trinity at risk.2 As the great emperor entered the hall, the air was not one of harmony, but of simmering tension. He saw men like Gregory of Nazianzus, a brilliant but frail theologian, who bore the weight of biblical truth with a heavy heart. He saw Meletius of Antioch, a powerful figure, who had been a source of division.3 He observed the Macedonian bishops, who arrived late in protest, their faces defiant, ready to challenge his very authority. Theodosius’s first act was not to decree, but to observe. He listened to the arguments, the impassioned speeches, and the subtle maneuvers of both sides of this momentous debate. This was not a battlefield to be won with swords, but a spiritual arena where the mind and the soul held sway.

In this article we will see how this second great council of the church further articulated and universally affirmed the doctrine of Trinity. This would provide a further basis for the advance of God’s Story of Grace where God’s image of a mutual and self-giving love to expand and be lived out on the earth. Further, as Rome would begin to fracture, the Church would become the new unifying center of civilization which would allow God’s image, reflected in the Trinity, to further transform civilization. Theodosius was the emperor who would, after Constantine, lay the ground work to make this possible.

The First Council of Constantinople

The Council of Constantinople was led by Miletus. When he died unexpectedly, Gregory of Nazianzus, who was recently installed as the bishop of Constantinople, was elected to preside. He spoke with fiery eloquence, defending the divinity of the Holy Spirit, in full equality with the Father and the Son. This had been an aspect of the Nicene Creed which was not addressed and still stirred fervent debate. But old rivalries ran deep. Gregory’s authority was challenged by a cabal of bishops who refused to be commanded by a theological rival. Exhausted and disheartened by the infighting, Gregory resigned. To replace Gregory, the council quickly installed Nectarius, a Roman official, who quickly became baptized in order to be the new bishop of Constantinople. Though lacking Gregory’s theological clout, Nectarius was a symbol of imperial favor and political stability.

In the end, it became clear that the work of the bishops was not to create a new document, but to expand upon the one formulated at Nicaea decades earlier. They condemned Arianism, but their most significant work was the clear articulation of the Holy Spirit’s divinity. The bishops, in need of a cohesive faith, arrived at a new consensus. The Constantinopolitan Creed, as it came to be known, was not merely a decree from an emperor but a statement of faith articulated by the Church itself. When the council concluded, Theodosius knew he had achieved his goal: the further strengthening and unification of the Church.

Major Outcomes

The divinity of the Holy Spirit is affirmed forever securing belief in the Trinity. In the original Nicene Creed of 325 reads:

We believe in one God, the Father almighty, Maker of heaven and earth,
and of all things visible and invisible.
And in one Lord Jesus Christ, the Son of God, the only-begotten,
begotten of the Father before all ages.
Light of Light, true God of true God, begotten not made,
of one essence with the Father by whom all things were made;
who for us men and for our salvation, came down from heaven,
and was incarnate of the Holy Spirit and the Virgin Mary
and became man.
And He was crucified for us under Pontus Pilate,
and suffered, and was buried.
And the third day He rose again, according to the Scriptures;
and ascended into heaven, and sits at the right hand of the Father;
and He shall come again with glory to judge the living and the dead;
whose Kingdom shall have no end.
And in the Holy Spirit.

Following the Second Ecumenical Council in Constantinople in 381, the Creed was further
supplemented with the following:

And we believe in the Holy Spirit, the Lord, the Giver of Life,
Who proceeds from the Father; who with the Father and the Son
together is worshipped and glorified; who spoke by the prophets.
In one Holy, Catholic,4 and Apostolic Church.
I acknowledge one baptism for the remission of sins.
I look for the resurrection of the dead, and the life
of the world to come.
Amen.

Theodosius expanded the unity of the Roman Empire with a deepening Christian commitments. This was vital as the Roman Empire would come under increasing attack from German tribes like the Visigoths, Ostrogoths, and Vandals, as well as the Huns. This ultimately created a domino effect of invasions and migrations as the political structure of Rome began to disintegrate, with the last emperor deposed in 479. It was Theodosius who consolidated the empire under the Council of Constantinople and would further push efforts to expand Christian reforms and policies that had begun under Constantine.5 Ironically, his reforms would provide a basis for Christianity to organically spread as the barbarian tribes came into contact with Rome. They converted to Christ, in part, because paganism had been forced into increasing decline.

The reign of Theodosius was not perfect by any measure. But in the expansion of God’s Story of Grace, his reforms and leadership led to the further realization of Revelation 11:15:

“The kingdom of the world has become
    the kingdom of our Lord and of his Messiah,
    and he will reign for ever and ever.”

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  1. Nicene Christianity affirmed the Council of Nicaea’s declaration that Jesus Christ was “very God of very God,” meaning that he was co-substantial (of the same substance) with the Father, “begotten and not made.” This was distinct against Arianism which promoted the idea that Jesus Christ was a created being, less in than the Father.
  2. The council did formally use the term Trinity, the council’s work was built upon the Council of Nicaea (325 AD), and together they confirmed the divinity of the Son and added the divinity of the Holy Spirit to the creed, affirming the Trinitarian view that is central to Christian orthodoxy today. 
  3. He served as the first president of the council but died shortly after the proceedings began. Meletius of Antioch (Greek: Μελέτιος, Meletios) was a Christian patriarch from Antioch from 360 until his death in 381. He was opposed by a rival bishop named Paulinus II and his ministry was dominated by the division and argument, usually called the Meletian schism. As a result, he was exiled from Antioch in 361–362, 365–366 and 371–378.
  4. The term “Catholic” mean universal church and is not limited to the Roman Catholic Church. In fact, this creed and council favored the leaders and churches at Constantinople over the leaders and churches of Rome.
  5. In some cases his reforms were too harsh against pagans, but in making the Empire more Christian, it provided an environment for missions and Christian philanthropy to spread.

Ambrose’s Struggle: Balancing Submission and Resistance to Government (Romans 13:1-7)

depiction of Ambrose and Constantine

In 390 A.D., when Emperor Theodosius ordered the massacre of approximately 7,000 citizens in the city of Thessalonica, this set off a clash with Bishop Ambrose of Milan. This confrontation offers a profound challenge to a superficial reading of Romans 13:1–7, where Paul famously commands submission to governing authorities. Ambrose’s resolute defiance of the emperor illustrates a critical theological distinction: that the state’s authority, though divinely instituted, is not absolute and is subordinate to God’s moral law. The conflict over the massacre at Thessalonica forged a powerful precedent in the history of church and state, demonstrating that Christians have a duty to resist and rebuke state power when it oversteps its moral and spiritual bounds.

In this article, we will address where those categories overlap. In God’s Story of Grace, the church has now come to a new place of authority and prominence to further reshape the world in the trinitarian image: increased unity and diversity. In this article, we will understand the influence of the church in relation to the state.

The Biblical Basis for State Authority

Paul wrote to the early church living in the very center of authority in the Roman Empire. This provides one of the most significant biblical passages on the Christian relationship to the state. Here is how Paul addresses this topic:

1Let everyone be subject to the governing authorities, for there is no authority except that which God has established. The authorities that exist have been established by God. Consequently, whoever rebels against the authority is rebelling against what God has instituted, and those who do so will bring judgment on themselves. For rulers hold no terror for those who do right, but for those who do wrong. Do you want to be free from fear of the one in authority? Then do what is right and you will be commended. For the one in authority is God’s servant for your good. But if you do wrong, be afraid, for rulers do not bear the sword for no reason. They are God’s servants, agents of wrath to bring punishment on the wrongdoer. Therefore, it is necessary to submit to the authorities, not only because of possible punishment but also as a matter of conscience.This is also why you pay taxes, for the authorities are God’s servants, who give their full time to governing. Give to everyone what you owe them: If you owe taxes, pay taxes; if revenue, then revenue; if respect, then respect; if honor, then honor.

Let’s look at a basic breakdown of this passage:

Principle # 1: The state has a divine origin.

“Let everyone be subject to the governing authorities, for there is no authority except that which God has established” (Romans 13:1).

Paul grounds the state’s legitimacy in God’s providence, meaning that the institution of government is part of God’s plan for order in the world.

Principle # 2: The state bears authority as a servant of God.

“For rulers hold no terror for those who do right, but for those who do wrong… For he is God’s servant to do you good” (Romans 13:3–5).

The state’s purpose is to maintain civil order, restrain evil through punishment, and create an environment where the righteous can flourish. In this way, they are servants of God.

Principle # 3: The state is to be submitted to and honored as God’s servants.

Therefore, it is necessary to submit to the authorities, not only because of possible punishment but also as a matter of conscience. (Romans 13:5).

Paul asks Christians to obey the state not merely out of fear of retribution but out of a deeper moral commitment to God, who established the state. This includes fulfilling civic duties like paying taxes.

This is also why you pay taxes, for the authorities are God’s servants, who give their full time to governing. Give to everyone what you owe them: If you owe taxes, pay taxes; if revenue, then revenue; if respect, then respect; if honor, then honor. (Romans 13:6–7)

These principles are solid for any age. But how this is applied to the church in the middle of the first century and the church at the end of the fourth century was considerably different. Before Constantine, the relationship between church and state was one of persecution, where Christianity was an illegal and often persecuted religion, with the state viewing it as a threat. After Constantine, the relationship transformed from persecution to tolerance and eventual state support, with the emperor becoming a key patron of the church, which gained political influence and began to intertwine with the state, a process that eventually led to Christianity becoming the official state religion.

Before and After Constantine

Before Constantine

  • Persecution: Christians were a persecuted minority, and the Roman state viewed Christianity as a threat to its traditional pagan order.
  • Illegal status: Christianity was an illegal religion for much of this period.
  • Lack of state support: The church did not receive state funding or special privileges and had to operate independently. 

After Constantine

  • State patronage: Constantine ended the persecution of Christians and, through the Edict of Milan in 313 CE, granted Christianity legal toleration. 
  • Increased power and influence: The church gained significant political power, temporal wealth, and influence it had never possessed before. 
  • Official religion: The relationship evolved to the point where, within a century, Christianity became the official religion of the empire. 
  • Instrument of unification: Emperors increasingly relied on the church as a tool to help unify the empire, especially as its unity and authority began to crumble. 

The Clash Over the Thessalonica Massacre

When Bishop Ambrose learned of the atrocity at Thessalonica, he was appalled by the emperor’s indiscriminate slaughter. This act moved beyond the state’s God-given role as a minister of justice and became a horrific miscarriage of it. Ambrose did not respond with political rebellion or armed force. Instead, he employed the most powerful spiritual weapon of his office: excommunication.

He wrote a letter of rebuke and correction to the emperor. Theodosius ignored Ambrose’s letter and showed up at the church doors. The historian Sozomen described this encounter:

When he drew near the gates of the edifice, he was met by Ambrose, the bishop of the city, who took hold of him by his purple robe, and said to him, in the presence of the multitude, ‘Stand back! A man defiled by sin, and with hands imbrued in blood unjustly shed, is not worthy, without repentance, to enter within these sacred precincts, or partake of the holy mysteries.’ The emperor, struck with admiration at the boldness of the bishop, began to reflect on his own conduct, and, with much contrition, retraced his steps. It appears that it was for these and other acts of cruelty that Ambrose rebuked the emperor, forbade him to enter the church, and excommunicated him.

Theodosius, recognizing the gravity of his sin and the spiritual authority of the bishop, eventually submitted. The historian Sozomen, again, explains his response:

Theodosius publicly confessed his sin in the church, and during the time set apart for penance, refrained from wearing his imperial ornaments, according to the usage of mourners. He also enacted a law prohibiting the officers entrusted with the execution of the imperial mandates, from inflicting the punishment of death till thirty days after the mandate had been issued, in order that the wrath of the emperor might have time to be appeased, and that room might be made for the exercise of mercy and repentance.

As a result, he enacted a law requiring a 30-day waiting period between a death sentence and its execution to prevent future impulsive acts of violence.

Before Constantine, the church and state were in conflict, with Christianity being illegal and regularly persecuted, as the state saw it as a threat. After Constantine, this changed to tolerance and support, with the emperor becoming an important supporter of the church, which gained political power and began to connect with the state, ultimately leading to Christianity being declared the official state religion.

Reconciling Submission and Resistance

Ambrose’s actions were not a rejection of Romans 13 but a consistent honoring of it. It is important to keep in mind that Ambrose did in no way seek to overthrow the emperor but rather to hold him accountable to the higher moral authority of God. The conflict reveals several critical principles for reconciling submission and resistance:

Principle # 1: The state has a divine origin. Ambrose understood that the state has its ultimate authority to God and answers to God. As such, that authority is accountable to God who is its source and even judge.

Principle # 2: The state has authority as a servant of God. While the state has legitimate authority over the civil order as a servant of God; the church has prophetic authority to call out the state when it steps beyond its service.

Principle # 3: The state, as servants of God, is to be submitted to and honored. The key here is that the state is to be obeyed “as God’s servants.” The massacre at Thessalonica was an act of gross injustice. He has every justification as a leader of the church, who had the emperor’s ear, to confront this. Ambrose’s resistance was spiritual. He did not raise an army but instead used the moral and spiritual power of the church.

Conclusion

In essence, Ambrose’s resistance was not a rebellion against authority but a protest against the abuse of authority. His actions illustrate that the Christian duty of submission outlined in Romans 13 is not a passive acceptance of all state actions but a call to active, conscience-based engagement. When the state acts outside its divine mandate to uphold justice and order, a Christian, and particularly a church leader, when properly positioned, has the duty to challenge and rebuke it for the sake of a higher purposes of God’s Story of Grace, at work in the world.