Ah, and since I'm sure not a few here will accuse me of some confusion of Empire and Church I submit the opinion of the Great Balsamon, Patriarch of Antioch:
'The service of the emperors includes the enlightening and strengthening of both the soul and the body; the dignity of the patriarchs is limited to the benefit of souls and to that only.'
Balsamon, PG138, 1014-34.
And again also from an encyclical of Patriarch Anthony of Constantinople, a document which I have posted before:
'The holy emperor has a great place in the church, for he is not like other rulers or governors of other regions. This ts so because from the beginning the emperors established and confirmed the faith in all the inhabited world. They convoked the ecumenical councils and confirmed and decreed the acceptance of the pronouncements of the divine and holy canons regarding the correct doctrines and the government of Christians. They struggled boldly against heresies, and imperial decrees together with councils established the metropolitan sees of the archpriests and the divisions of their provinces and the delineation of their districts. For this reason the emperors enjoy great honor and position in the Church, for even if, by God's permission, the nations have constricted the authority and domain of the emperor, still to this day the emperor possesses the same charge from the church and the same rank and the same prayers. The basileus is anointed with the great myrrh and is appointed basileus and autokrator of the Romans, and indeed of all Christians. Everywhere the name of the emperor is commemorated by all patriarchs and metropolitans and bishops wherever men are called Christians, which no other ruler or governor ever received. Indeed he enjoys such great authority over all that even the Latins themselves, who are not in communion with our church, render him the same honor and submission which they did in the old days when they were united with us. So much more do Orthodox Christians owe such recognition to him....
'Therefore, my son, you are wrong to affirm that we have the church without an Emperors for it is impossible for Christians to have a church and no empire. The Baslleia and the church have a great unity and community - indeed they cannot be separated. Christians can repudiate only emperors who are heretics who attack the church, or who introduce doctrines irreconcilable with the teachings of the Apostles and the Fathers. But our very great and holy autokrator, by the grace of God, is most orthodox and faithful, a champion of' the church, its defender and avenger, so that it is impossible for bishops not to mention his name in the liturgy. Of whom, then, do the Fathers, councils, and canons speak? Always and everywhere they speak loudly of' the one rightful basileus, whose laws, decrees, and charters are in force throughout the world and who alone, only he, is mentioned in all places by Christians in the liturgy.'
F. Miklosich and I. Mueller, eds., Acta et Diplomata Graeca I, Vienna, 1862, vol. 2, pp. 190-91.