Were all the limbs of my body to be turned into tongues, and all the joints of my limbs to utter articulate sounds, it would noways be sufficient to express who, how great and how good, was our most blessed Father Peter, Archbishop of Alexandria. Especially incongruous do I consider it to commit to paper what perils he underwent by tyrants, what conflicts he endured with Gentiles and heretics, lest I should seem to make these the subjects of my panegyric rather than that passion to which he manfully submitted to make safe the people of God. Nevertheless, because the office of the narrator must fail in narrating his inmost conversation and wonderful deeds, and language is noways sufficient for the task, I have considered it convenient to describe only those exploits of his by which he is known to have attained to the pontificate, and after Arius had been cut off from the unity of the Church, to have been crowned with the martyr's laurel. Yet this do I consider to be a glorious end, and a spectacle of a magnificent contest, sufficient for those who do not doubt of a truthful narration, which is unstained by falsehood. In commencing, therefore, our account of the episcopate of this most holy man, let us call to our aid his own language, in order that we may make it co-operate with our own style.
Alexandria is a city of exceeding magnitude, which holds the first place not only among the Egyptians, but the Thebans also and the Libyans, who are at no great distance from Egypt. A cycle of two hundred and eighty-five years from the incarnation of our Lord and Saviour Jesus Christ had rolled round, when the venerable Theonas, the bishop of this city, by an ethereal flight, mounted upwards to the celestial kingdoms. To him Peter, succeeding at the helm of the Church, was by all the clergy and the whole Christian community appointed bishop, the sixteenth in order from Mark the Evangelist, who was also archbishop of the city. He in truth, like Phosphor rising among the stars, shining forth with the radiance of his sacred virtues, most magnificently governed the citadel of the faith. Inferior to none who bad gone before him in his knowledge of Holy Scripture, he nobly applied himself to the advantage and instruction of the Church; being of singular prudence, and in all things perfect, a true priest and victim of God, he watchfully laboured night and day in every sacerdotal care.
But because virtue is the mark of the zealot, “it is the tops of the mountains that are struck by lightning,” he hence endured multifarious conflicts with rivals. Why need I say more? He lived in persecution almost the whole of his life. Meanwhile he ordained fifty-five bishops. Meletius lastly— in mind and name most black— was made the schismatical bishop of the city of Lycopolis, doing many things against the rule of the canons, and surpassing even the bloody soldiery in cruelty who, at the time of the Lord's Passion, feared to rend His coat; he was so hurried on by giving the rein to his madness, that, rending asunder the Catholic Church not only in the cities of Egypt, but even in its villages, he ordained bishops of his own party, nor cared he anything for Peter, nor for Christ, who was in the person of Peter. To him Arius, who was yet a laic, and not marked with the clerical tonsure, adhered, and was to him and his family most dear; and not without reason: every animal, as says the Scripture, loves its like. But upon this coming to his knowledge, the man of God being affected with grief, said that this persecution was worse than the former. And although he was in hiding, yet, so far as his strength permitted, directing everywhere his exhortations, and preaching up the unity of the Church, he strengthened men to withstand the ignorance and nefarious temerity of Meletius. Whence it came to pass that not a few, being influenced by his salutary admonitions, departed from the Meletian impiety.
Nearly about the same time Arius, armed with a viper's craft, as if deserting the party of Meletius, fled for refuge to Peter, who at the request of the bishops raised him to the honours of the diaconate, being ignorant of his exceeding hypocrisy. For he was even as a snake suffused with deadly poison. Yet neither can the imposition of hands upon this false one be imputed as a crime to this holy man, as the simulated magic arts of Simon is not ascribed to Philip. Meanwhile, the detestable wickedness of the Meletians increased beyond measure; and the blessed Peter, fearing lest the plague of heresy should spread over the whole flock committed to his care, and knowing that there is no fellowship with light and darkness, and no concord between Christ and Belial, by letter separated the Meletians from the communion of the Church. And because an evil disposition cannot long be concealed, upon that instant the wicked Arius, when he saw his aiders and abettors cast down from the dignity of the Church, gave way to sadness and lamentation. This did not escape the notice of this holy man. For when his hypocrisy was laid bare, immediately using the evangelical sword, “If your right eye offend you, pluck it out and cast it from you,” and cutting off Arius from the body of the Church as a putrid limb, he expelled and banished him from the communion of the faithful.
This done, the storm of persecution suddenly abating, peace, although for a short time, smiled. Then this most choice priest of the Lord shone manifestly before the people, and the faithful began to run in crowds to keep the memory of the martyrs, and to assemble in congregations to the praise of Christ. Whom this priest of the divine law quickened with his holy eloquence, and so roused and strengthened that the multitude of believers increased continually in the Church. But the old enemy of salvation of man did not long remain quiet and look on these things with favouring eyes. For on a sudden the storm-cloud of paganism gave forth its hostile thunder, and like a winter shower struck against the serenity of the Church, and chased it away in flight. But that this may be understood more clearly, we must necessarily turn back to the atrocities of Diocletian, that impious one, and rebel against God, and also to Maximian Galerius, who at that time, with his son Maximin, harassed the regions of the East with his tyrannical sway.
For in the time of this man the fire of Christian persecution so raged, that not only in one region of the universe, but even throughout the whole world, both by land and by sea, the storm of impiety gave forth its thunder. The imperial edicts and most cruel decrees running hither and there, the worshippers of Christ were put to death now openly, and now by clandestine snares; no day, no night, passed off free from the effusion of Christian blood. Nor was the type of slaughter of one kind alone; some were slain with diverse and most bitter tortures; some again, that they might want the humanity of kinsmen, and burial in their own country, were transported to other climes, and by certain new machinations of punishment, and as yet to the age unknown, were driven to the goal of martyrdom. Oh, the horrible wickedness! So great was their impiety that they even upturned from their foundations the sanctuaries of divine worship, and burned the sacred books in the fire. Diocletian of execrable memory having died, Constantinus Major was elected to administer the kingdom, and in the western parts began to hold the reins of government.
Source: The Genuine Acts (New Advent)