The heresiarch Arius was a Libyan by race and a protopresbyter of the Church of Alexandria. In 315, he began to blaspheme against the Son and Word of God, saying that He is not true God, consubstantial with the Father, but is rather a work and creation, alien to the essence and glory of the Father, and that there was a time when He was not. This frightful blasphemy shook the faithful of Alexandria. Alexander, his Archbishop, after trying in vain to correct him through admonitions, cut him off from communion and finally in a local council deposed him in the year 321. Yet neither did the blasphemer wish to be corrected, nor did he cease sowing the deadly tares of his heretical teachings; but writing to the bishops of other cities, Arius and his followers requested that his doctrine be examined, and if it were unsound, that the correct teaching be declared to him. By this means, his heresy became universally known and won many supporters, so that the whole Church was soon in an uproar.

Therefore, moved by divine zeal, the first Christian Sovereign, Saint Constantine the Great, the equal to the Apostles, summoned the renowned First Ecumenical Council in Nicaea, a city of Bithynia. It was there that the shepherds and teachers of the Church of Christ gathered from all regions in the year 325. All of them, with one mouth and one voice, declared that the Son and Word of God is one in essence with the Father, true God of true God, and they composed the holy Symbol of Faith up to the seventh article (since the remainder, beginning with "And in the Holy Spirit," was completed by the Second Ecumenical Council). Thus they anathematized the impious Arius of evil belief and those of like mind with him, and cut them off as rotten members from the whole body of the faithful.

Therefore, recognizing the divine Fathers as heralds of the Faith after the divine Apostles, the Church of Christ has appointed this present Sunday for their annual commemoration, in thanksgiving and unto the glory of God, unto their praise and honour, and unto the strengthening of the true Faith.

The holy Virgin Martyr Theodosia was born in Tyre of Phoenicia. At the age of eighteen she was seized in Caesarea of Palestine during a persecution and was brought before Urban the ruler. Because she refused to offer sacrifice to the idols, her sides and breasts were mercilessly scraped even to the inward parts and bones. She endured this in silence with astonishing courage. When Urban again asked her to sacrifice, she mocked him, and after being tormented even more horribly than before, she was cast into the sea in the year 308.

The Righteous Martyr Theodosia, having Constantinople as her homeland, struggled in asceticism in her own convent, which was located in that same imperial city. Filled with zeal for the veneration of the holy icons, she withstood Emperor Leo the Isaurian's impious command that the icons be destroyed. She received the martyr's crown when a soldier of the imperial guard plunged a ram's horn through her throat, about the year 717.

The righteous Isaacius was from Syria and came to Constantinople in 374, excelled in the monastic life, and departed to the Lord in 396. According to tradition, his monastery was built by Dalmatus the Patrician, a nephew of Saint Constantine the Great. But many say that the monastery was founded by Saint Isaacius, and afterwards took the name of the Abbot Dalmatus who succeeded Saint Isaacius (see Aug. 3 for an account of the life of Saints Isaacius and Dalmatus). Yet others maintain that it received its name from both of these, and that is why its name in Greek is in the plural. According to Zonaras, the Iconoclast Emperor Constantine Copronymus later turned this monastery into a barracks: "And as for the Monastery called Palmatus, which is ancient and the oldest of all those in Constantinople, after he had expelled the monks, [the Emperor] made it a barracks for soldiers" (Chronicle, XV, 8). The Third Ecumenical Council raised its abbot to the rank of archimandrite and exarch of the prominent monasteries of the imperial city. The famous Cathedral of Saint Isaac in Saint Petersburg is dedicated to this Saint.

This Saint, who was from Neapolis of Palestine, was a follower of Plato the philosopher. Born in 103, he came to the Faith of Christ when he was already a mature man, seeking to find God through philosophy and human reasoning. A venerable elder appeared to him and spoke to him about the Prophets who had taught of God not through their own wisdom, but by revelation; and he led him to knowledge of Christ, Who is the fulfillment of what the Prophets taught. Saint Justin soon became a fervent follower of Christ, and an illustrious apologist of the Evangelical teachings. To the end of his life, while preaching Christ in all parts, he never put off his philosopher's garb. In Rome, he gave the Emperor Antoninus Pius (reigned 138-161) an apology wherein he proved the innocence and holiness of the Christian Faith, persuading him to relieve the persecution of Christians. Through the machinations of Crescens, a Cynic philosopher who envied him, Saint Justin was beheaded in Rome in 167 under Antoninus' successor, Marcus Aurelius (reigned 161-180). Besides his defense of Christianity (First and Second Apologies), Saint Justin wrote against paganism (Discourse to the Greeks, Hortatory Address to the Greeks), and refuted Jewish objections against Christ (Dialogue with Trypho).

Saint Nicephorus was born in Constantinople about the year 758, of pious parents; his father Theodore endured exile and tribulation for the holy icons during the reign of Constantine Copronymus (741-775). Nicephorus served in the imperial palace as a secretary. Later, he took up the monastic life, and struggled in asceticism not far from the imperial city; he also founded monasteries on the eastern shore of the Bosphorus, among them one dedicated to the Great Martyr Theodore.

After the repose of the holy Patriarch Tarasius, he was ordained Patriarch, on April 12, 806, and in this high office led the Orthodox resistance to the Iconoclasts' war on piety, which was stirred up by Leo the Armenian. Because Nicephorus championed the veneration of the icons, Leo drove Nicephorus from his throne on March 13, 815, exiling him from one place to another, and lastly to the Monastery of Saint Theodore which Nicephorus himself had founded. It was here that, after glorifying God for nine years as Patriarch, and then for thirteen years as an exile, tormented and afflicted, he gave up his blameless soul in 828 at about the age of seventy. See also March 8.