"ORIGEN, surnamed Adamantius, a persecution having been raised against the Christians in the tenth year of Severus Pertinax, and his father Leonidas having received the crown of martyrdom for Christ, was left at the age of about seventeen, with his six brothers and widowed mother, in poverty, for their property had been confiscated because of confessing Christ.
"When only eighteen years old, he undertook the work of instructing the Catechetes in the scattered churches of Alexandria. Afterwards appointed by Demetrius, bishop of this city, successor to the presbyter Clement, he flourished many years. When he had already reached middle life, on account of the churches of Achaia, which were torn with many heresies, he was journeying to Athens, by way of Palestine, under the authority of an ecclesiastical letter, and having been ordained presbyter by Theoctistus and Alexander, bishops of Cæsarea and Jerusalem, he offended Demetrius, who was so wildly enraged at him that he wrote everywhere to injure his reputation. It is known that before he went to Cæsarea, he had been at Rome, under Bishop Zephyrinus. Immediately on his return to Alexandria he made Heraclas the presbyter, who continued to wear his philosopher's garb, his assistant in the school for catechetes. Heraclas became bishop of the church of Alexandria, after Demetrius. How great the glory of Origen was, appears from the fact that Firmilianus, bishop of Cæsarea, with all the Cappadocian bishops, sought a visit from him, and entertained him for a long while. Sometime afterwards, going to Palestine to visit the holy places, he came to Cæsarea and was instructed at length by Origen in the Holy Scriptures. It appears also from the fact that he went to Antioch, on the request of Mammaea, mother of the Emperor Alexander, and a woman religiously disposed, and was there held in great honour, and sent letters to the Emperor Philip, who was the first among the Roman rulers, to become a christian, and to his mother, letters which are still extant. Who is there, who does not also know that he was so assiduous in the study of Holy Scriptures, that contrary to the spirit of his time, and of his people, he learned the Hebrew language, and taking the Septuagint translation, he gathered the other translations also in a single work, namely, that of Aquila, of Ponticus the Proselyte, and Theodotian the Ebonite, and Symmachus an adherent of the same sect who wrote commentaries also on the gospel according to Matthew, from which he tried to establish his doctrine. And besides these, a fifth, sixth, and seventh translation, which we also have from his library, he sought out with great diligence, and compared with other editions. And since I have given a list of his works, in the volumes of letters which I have written to Paula, in a letter which I wrote against the works of Varro, I pass this by now, not failing however, to make mention of his immortal genius, how that he understood dialectics, as well as geometry, arithmetic, music, grammar, and rhetoric, and taught all the schools of philosophers, in such wise that he had also diligent students in secular literature, and lectured to them daily, and the crowds which flocked to him were marvellous. These, he received in the hope that through the instrumentality of this secular literature, he might establish them in the faith of Christ.
"It is unnecessary to speak of the cruelty of that persecution which was raised against the Christians and under Decius, who was mad against the religion of Philip, whom he had slain,— the persecution in which Fabianus, bishop of the Roman church, perished at Rome, and Alexander and Babylas, Pontifs of the churches of Jerusalem and Antioch, were imprisoned for their confession of Christ. If any one wishes to know what was done in regard to the position of Origen, he can clearly learn, first indeed from his own epistles, which after the persecution, were sent to different ones, and secondly, from the sixth book of the church history of Eusebius of Cæsarea, and from his six volumes in behalf of the same Origen.
"He lived until the time of Gallus and Volusianus, that is, until his sixty-ninth year, and died at Tyre, in which city he also was buried."
~St. Jerome: De Viris Illustribus (On Illustrious Men), Chap. 54.
Learn more about Origen:
• Origen, Wikipedia
• Origen and Origenism, Catholic Ency.