Pope Agatho, waiting for many bishops, among them English, to come to Rome, only held in March, 680, his synod of 125 bishops in preparation for the Council to be held in Constantinople, and to name legates to attend it. This was a great Council of the western patriarchate, which had been preceded by smaller Councils in the several provinces, as, for instance, Milan. Agatho and the council sent two letters to the emperor, which developed the creed of the Church according to the Lateran Council of 649, and signified its acceptance as necessary to all believers. The priests Theodore and George, the deacon John, and the sub-deacon Constantine were appointed legates for the Roman Church; the Bishops Abundantius of Paterno, John of Porto, and John of Reggio as deputies for the Council; and the priest Theodore to represent Ravenna. Agatho described these commissioners, not as learned theologians, for the confusion of the times made such very rare. His words run, “How can perfect knowledge of the Scriptures be found in men who live in the midst of heathens and get their support by manual labour with the greatest difficulty? but we maintain whatever has been defined by our apostolic predecessors and the Five Councils in simplicity of heart as the unambiguous faith descending from our fathers”.[120]
Theodore, Archbishop of Canterbury, had been invited by the Pope to attend his Council at Rome, but was unable [pg 240] to come. In the preceding year, 679, St. Wilfrid, Bishop of York, was heard at the Lateran on his appeal in a Council of 16 bishops and restored to his see.[121]
The legates were honourably received in the capital and lodged in the Placidia Palace. After their arrival on the 10th September, 680, the emperor invited the patriarch George, of Constantinople, and through him Makarius, of Antioch, to call to council the metropolitans subject to them. At first the court had not thought of the sees of Alexandria and Jerusalem, which were under Saracen domination. But before the Council entered on deliberation two regular priests, Peter and George, were found, the first to represent Alexandria, the last to stand in the place of Theodore, vicar of the patriarchate of Jerusalem. It would seem that it was as well through this representation of the other sees, as also because of what Pope Agatho had done, that the Council which now met, though it had not been the original purpose of the emperor, from its beginning was marked as ecumenical, and afterwards took rank as the Sixth of these with the Five preceding.
The Council was held from the 7th November, 680, to the 16th September, 681, in the hall called the Dome of the Imperial Palace, under the presidency of the papal legates and the imperial presidency of honour. The Emperor, with many officers of State, was present at the first eleven sessions, and with them directed the external order of business; but both he and they were carefully distinguished from the members of the Council, whose [pg 241] numbers did not at first reach a hundred, but afterwards rose to 174.
In the first session, the 7th September, the Roman deputies, in an address to the emperor, desired that those who represented the Byzantine Church would declare the origin of the innovation which had existed in it for more than forty years. Macarius and his associates appealed to the earlier General Councils and to the Fathers. Thereupon the acts of the Council of Ephesus were read. There was found in them nothing in favour of the Monothelites, for the words of Cyril, that the will of Christ was almighty, could only be referred to His divine nature. In the second session, on the 10th November, the acts of the Council of Chalcedon were read, which were entirely unfavourable to the heresy. Macarius in vain attempted to insist on the words “theandric operation” without determining their meaning. On the reading the acts of the Fifth Council, at the third sitting, the 13th November, the writing of Mennas to Vigilius and two alleged letters of the latter were admitted to be spurious. The Monothelites could show nothing for themselves out of the General Councils. They had now to seek proof from the writings of the Fathers. They begged for time, and, on the proposition of George of Constantinople, the letters of Agatho and the Roman Council were ordered to be read, which occupied the fourth session, on the 15th November. In the fifth and sixth sessions, of the 7th December, 680, and the 12th February, 681, Macarius proposed passages from the writings of Fathers in behalf of his [pg 242] doctrine, but it was shown that they were mostly falsified or imperfectly quoted or indecisive. At the seventh session, 13th February, 681, the Roman collection of passages from the Fathers in support of the doctrine of Two Wills and Two Operations was read against the others. George and Macarius received copies of them. While Macarius remained obstinate, George was convinced of the correctness of the doctrine set forth in the papal letters, and on the 17th February he gave in a confession to the Roman legates in which the Two Wills and the Two Operations were expressly acknowledged. When, then, the emperor at the eighth session, on the 7th March, questioned the bishops on their accession to the letters of Agatho, not only George of Constantinople admitted this, who requested and obtained from the emperor the reinsertion of Pope Vitalian into the diptychs of his Church, but also Theodore of Ephesus, Sisinnius of Heraklea, Domitius of Prusias, and other bishops, mostly in the jurisdiction of Byzantium, five also from that of Antioch. On the contrary, Macarius put in a confession directed against “the godless heresy” of Maximus. The examination of the patristic passages put in by him began, which was continued in the following session of March 8, wherein Macarius took no more part. He and his pupil Stephen were deposed as falsifiers of the faith and teachers of error. At the tenth session, the 18th March, the testimonies put in by the Roman legates were, after collation with the manuscripts of the patriarchal archives, found correct, and a confession agreeing with the declaration of [pg 243] Agatho was delivered by Theodore, Bishop of Melitene, and others. As the close of the eleventh session, the 20th March, in which at the instance of the representative from Jerusalem, the letter of St. Sophronius to Sergius, and, at the instance of the Roman legates, four passages of Macarius and his pupil Stephen were read, the emperor announced that as he was prevented from further attendance at the sessions by state business, four officials of rank would henceforth represent him. But, besides, the chief matter was already settled. Old and New Rome were again united in belief.
At the twelfth sitting on the 22nd March a number of writings were read which Macarius had transmitted to the emperor, but the emperor sent on to the Council unread. Among them were contained the letters of Sergius to Cyrus and Honorius, and the answer of the latter. These documents were collated with the manuscripts of the patriarchal archive, and found to agree. Thereupon in the thirteenth session, on the 28th March, condemnation was passed upon the heads and favourers of Monothelitism, on Theodore of Pharan, Cyrus of Alexandria, Sergius, Pyrrhus, Paul, Peter of Constantinople (the three patriarchs next following, of whom nothing heretical was found, were spared), as likewise upon “Honorius of Rome, who followed Sergius and confirmed his teaching”. The synodal letter of Sophronius was acknowledged as orthodox. In the fourteenth session, on the 5th April, at which also the newly-elected Catholic patriarch of Antioch, Theophanes, was present, the falsifications in the Fifth Council, the writing [pg 244] ascribed to Mennas and the two suppositious letters of Vigilius, were laid under anathema. On the octave of Easter, the 14th April, John, bishop of Porto, celebrated Mass in the emperor's presence at Sancta Sophia according to the Latin rite. The monk and priest Polychronius, who already in the fourteenth session had been accused by Domitius, bishop of Prusias, as a deceiver of the people, was brought before the Council at its fifteenth session on the 26th April. He desired in confirmation of the Monothelite doctrine to raise up a dead man. He was allowed to try in order to undeceive the people. He laid his confession of faith upon a dead body which was brought in, and whispered for two hours long into his ears, of course without effect. As he was not shaken in his attachment to the heresy, he was deprived of his rank as priest, and excommunicated. In the sixteenth session, which was held, after a long interval, on the 9th August, a Syrian priest, Constantine of Apamea, wished to get the doctrine recognised that there were in Christ two operations belonging to the Natures, but only one personal Will of the Word: that besides this Christ had once indeed also a natural human Will, but that He laid aside this at the crucifixion together with flesh and blood. The Council condemned this doctrine as savouring of Manichean and Apollinarian heresy, issued anathema against those whom it condemned, and resolved to publish a confession of faith, which was considered at the seventeenth session of the 11th September, and solemnly proclaimed at the closing session on the 16th September, in presence of the emperor. In this, after [pg 245] agreement declared with the five preceding General Councils, it was proclaimed that there are to be received in Christ Two Natural Operations and Two Natural Wills undivided, inseparable, unchangeable, and unmixed, which are not contrary to each other, since the human will follows the divine and is subject to it, is indeed deified and exalted, but not removed or extinguished. Neither of the Two Natures can be without operation or without will. The Council thanked the emperor in a special address for his labours to bring about the peace of the Church, requested that five accredited copies of the decree of faith should be provided for the five patriarchal sees, and in a special letter to the Pope besought the confirmation of their decrees by him.[122] Besides this very brief summary of the eighteen sessions of the Sixth Council, it is requisite to take notice of certain documents which were either presented to the Council by the legates, as their commission from the Pope, or proceeded from the Council or the emperor at its conclusion.
Pope Agatho had committed to his legates a long letter to the emperor. One passage from it may shew how plainly he set forth the authority of the Apostolic See and its inerrancy in matters of faith. He lays down the doctrine which opposes the Monothelite heresy, not as a matter for discussion, but as absolutely determined. “St. Peter,” he says, “received the charge to feed the spiritual sheep of the Church by a triple commendation from the Redeemer of all Himself. By [pg 246] his help this apostolical Church of his never turned aside from the way of truth to any error. The whole Catholic Church and General Councils followed in all things his authority as that of the chief of the apostles. This is the true rule of faith, which in prosperity and adversity the spiritual mother of your empire, the Apostolic Church of Christ, has kept unswervingly, which, by the grace of Almighty God, will be proved never to have erred from the path of apostolic tradition. It has never yielded to the corruption of heretical novelties, but as from the beginning of the Christian faith it has received from its authors the chief apostles, it has continued spotless according to the divine promise of the Lord our Saviour Himself, which He spoke to the chief of His disciples in the gospel: ‘Peter, behold Satan has sought to sift you, but I have prayed for thee,’ etc. Let your clemency consider how the Lord and Saviour of all, whose the faith is, who promised that the faith of Peter should not fail, charged him to confirm his brethren, which it is known to all that the apostolic pontiffs, my predecessors, have ever confidently done.”
A more peremptory assertion cannot be made than this, and it is made by a Pope to an emperor, on the occasion of calling a General Council. It is carried by his legates, as ambassadors carry the commission of their sovereign. The answer[123] which the Council sent at its conclusion to the Pope shows how it was received. It ascribes to the Pope in fullest terms the position [pg 247] which he claimed, beginning in these words: “Greatest diseases require the greatest remedies, as you, most Blessed, know; and therefore Christ our God, whose power created, whose wisdom provides all things, has appointed your Holiness as a skilled physician to meet the contagion of heresy by the force of true belief, and to impart the vigour of health to the members of the Church. We then, having read through the letters of a true confession sent by your paternal Blessedness to the most gracious emperor, leave to you what is to be done; to you who hold the first see of the universal Church, standing on the firm rock of faith. We recognise your letters as written from the supreme head of the apostles. By them we have cast out the heretical sect which has lately set up its manifold error. According to the sentence previously passed upon them, we have cast out Theodore, bishop of Pharan, Sergius, Honorius, Cyrus, Paul, Pyrrhus, and Peter. We have sent what we have done, and these things will be learned from those who represented you, Theodore and George, priests; John, deacon; and Constantine, sub-deacon. They state accurately the doctrine which they have approved, which we beseech your paternal Holiness to set your seal upon by your honoured rescript.”
Is it possible to accept in more express terms the authority claimed by the Pope in his letter to the emperor, including that descent from Peter, to whom the promise made by our Lord is made the source and the guarantee of the authority? Is it possible more [pg 248] fully to acknowledge his right to confirm, in their own words, “to set his seal” on their proceedings?
But the Council also congratulated the emperor on the work over which as sovereign he had presided. Its success they attribute to the Pope in these words: “The highest of all,[124] the first apostle fought with us; for we had for our supporter, who by his writing set forth the mystery of theology, his imitator and the successor of his chair. The city of Rome the elder presented to you a confession dictated by God, and caused the daylight of belief to rise from the West. Paper and ink it seemed, but Peter spoke by Agatho.”