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Selections from Eusebius, Life of Constantine


The most important record that remains of Constantine’s life is a biography written shortly after his death by the historian and Christian bishop Eusebius of Caesarea (ca. 263–339 ?), a close adviser to Constantine. As Constantine’s friend and an official in the Church, Eusebius expressed a particular point of view in his biography, but many of the events he discusses, such as Constantine’s proclamations and military battles, are recorded in other sources as well. Other events are not verifiable, but the stories about Constantine came to be considered true by later Christians. When I teach Eusebius, I remind my students that the most important question to ask ourselves is not whether the events really happened, but why Eusebius provided the account he did, and how they came to shape widely-held views of Constantine and of Christianity. Questions I pose to students as they read these excerpts from Eusebius: What convinces Constantine that he should become a Christian? How does he relate to the bishops, the Church’s key officials? What does he see as most important for the Church? What actions does he take? How do the events related here fit with the imperial edicts that he issued? How might Eusebius’s position as an official in the Church shape the way he reports history? This source is a part of the Constantine and Christianity teaching module.


Thus then the God of all, the Supreme Governor of the whole universe, by his own will appointed Constantine, the descendant of so renowned a parent, to be prince and sovereign: so that, while others have been raised to this distinction by the election of their fellow-men, he is the only one to whose elevation no mortal may boast of having contributed. . . . Being convinced, however, that he [Constantine] needed some more powerful aid than his military forces could afford him, on account of the wicked and magical enchantments which were so diligently practiced by the tyrant [Constantine’s rivals for authority in the empire, Severus and Galerius] he sought Divine assistance, deeming the possession of arms and a numerous soldiery of secondary importance, but believing the co-operating power of Deity invincible and not to be shaken. He considered, therefore, on what God he might rely for protection and assistance. . . . Accordingly he called on him with earnest prayer and supplications that he would reveal to him who he was, and stretch forth his right hand to help him in his present difficulties. And while he was thus praying with fervent entreaty, a most marvelous sign appeared to him from heaven, the account of which it might have been hard to believe had it been related by any other person. But since the victorious emperor himself long afterwards declared it to the writer of this history [that is, Eusebius] when he was honored with his acquaintance and society, and confirmed his statement by an oath, who could hesitate to accredit the relation, especially since the testimony of after-time has established its truth? He said that about noon, when the day was already beginning to decline, he saw with his own eyes the trophy of a cross of light in the heavens, above the sun, and bearing the inscription, Conquer by this. At this sight he himself was struck with amazement, and his whole army also, which followed him on this expedition, and witnessed the miracle. He said, moreover, that he doubted within himself what the import of this apparition could be. And while he continued to ponder and reason on its meaning, night suddenly came on; then in his sleep the Christ of God appeared to him with the same sign which he had seen in the heavens, and commanded him to make a likeness of that sign which he had seen in the heavens, and to use it as a safeguard in all engagements with his enemies. At dawn of day he arose, and communicated the marvel to his friends: and then, calling together the workers in gold and precious stones, he sat in the midst of them, and described to them the figure of the sign he had seen, bidding them represent it in gold and precious stones. And this representation I myself have had an opportunity of seeing. Now it was made in the following manner. A long spear, overlaid with gold, formed the figure of the cross by means of a transverse bar laid over it. On the top of the whole was fixed a wreath of gold and precious stones; and within this, the symbol of the Saviour’s name, two letters indicating the name of Christ by means of its initial characters, the letter P being intersected by X in its centre: and these letters the emperor was in the habit of wearing on his helmet at a later period. . . . Thus the pious emperor, glorying in the confession of the victorious cross, proclaimed the Son of God to the Romans with great boldness of testimony. And the inhabitants of the city, one and all, senate and people, reviving, as it were, from the pressure of a bitter and tyrannical domination, seemed to enjoy purer rays of light, and to be born again into a fresh and new life. All the nations, too, as far as the limit of the western ocean, being set free from the calamities which had heretofore beset them, and gladdened by joyous festivals, ceased not to praise him as the victorious, the pious, the common benefactor: all, indeed, with one voice and one mouth, declared that Constantine had appeared by the grace of God as a general blessing to mankind. . . . The emperor also personally inviting the society of God’s ministers, distinguished them with the highest possible respect and honor, showing them favor in deed and word as persons consecrated to the service of his God. Accordingly, they were admitted to his table, though mean in their attire and outward appearance; yet not so in his estimation, since he thought he saw not the man as seen by the vulgar eye, but the God in him. He made them also his companions in travel, believing that He whose servants they were would thus help him. Besides this, he gave from his own private resources costly benefactions to the churches of God, both enlarging and heightening the sacred edifices, and embellishing the august sanctuaries of the church with abundant offerings. He likewise distributed money largely to those who were in need, and besides these showing himself philanthropist and benefactor even to the heathen, who had no claim on him; and even for the beggars in the forum, miserable and shiftless, he provided, not with money only, or necessary food, but also decent clothing. . . . In short, as the sun, when he rises upon the earth, liberally imparts his rays of light to all, so did Constantine, proceeding at early dawn from the imperial palace, and rising as it were with the heavenly luminary, impart the rays of his own beneficence to all who came into his presence. It was scarcely possible to be near him without receiving some benefit, nor did it ever happen that any who had expected to obtain his assistance were disappointed in their hope. . . . [In an edict to the provinces, Constantine stated:] “My own desire is, for the common good of the world and the advantage of all mankind, that thy people should enjoy a life of peace and undisturbed concord. Let those, therefore, who still delight in error, be made welcome to the same degree of peace and tranquillity which they have who believe. For it may be that this restoration of equal privileges to all will prevail to lead them into the straight path. Let no one molest another, but let every one do as his soul desires. Only let men of sound judgment be assured of this, that those only can live a life of holiness and purity, whom thou callest to a reliance on thy holy laws. With regard to those who will hold themselves aloof from us, let them have, if they please, their temples of lies: we have the glorious edifice of thy truth, which thou hast given us as our native home. We pray, however, that they too may receive the same blessing, and thus experience that heartfelt joy which unity of sentiment inspires. . . .” [In 325, Constantine called the Council of Nicaea and addressed the bishops assembled there as follows.] “[I]n my judgment, intestine strife within the Church of God is far more evil and dangerous than any kind of war or conflict; and these our differences appear to me more grievous than any outward trouble. . . . “Delay not, then, dear friends: delay not, ye ministers of God, and faithful servants of him who is our common Lord and Saviour: begin from this moment to discard the causes of that disunion which has existed among you, and remove the perplexities of controversy by embracing the principles of peace. For by such conduct you will at the same time be acting in a manner most pleasing to the supreme God, and you will confer an exceeding favor on me who am your fellow-servant. . . .” All these things the emperor diligently performed to the praise of the saving power of Christ, and thus made it his constant aim to glorify his Saviour God. On the other hand he used every means to rebuke the superstitious errors of the heathen. Hence the entrances of their temples in the several cities were left exposed to the weather, being stripped of their doors at his command; the tiling of others was removed, and their roofs destroyed. . . . How deeply his soul was impressed by the power of divine faith may be understood from the circumstance that he directed his likeness to be stamped on the golden coin of the empire with the eyes uplifted as in the posture of prayer to God: and this money became current throughout the Roman world. His portrait also at full length was placed over the entrance gates of the palaces in some cities, the eyes upraised to heaven, and the hands outspread as if in prayer. . . . With regard to those who were as yet ignorant of divine truth, he provided by a second statute that they should appear on each Lord’s day on an open plain near the city, and there, at a given signal, o ffer to God with one accord a prayer which they had previously learnt. He admonished them that their confidence should not rest in their spears, or armor, or bodily strength, but that they should acknowledge the supreme God as the giver of every good, and of victory itself. . . . The emperor himself prescribed the prayer to be used by all his troops. . . . Hence it was not without reason that once, on the occasion of his entertaining a company of bishops, he let fall the expression, “that he himself too was a bishop,” addressing them in my hearing in the following words: “You are bishops whose jurisdiction is within the Church: I also am a bishop, ordained by God to overlook whatever is external to the Church.” And truly his measures corresponded with his words; for he watched over his subjects with an episcopal [as a bishop] care, and exhorted them as far as in him lay to follow a godly life.

How to Cite This Source

"Selections from Eusebius, Life of Constantine," in World History Commons, [accessed January 19, 2022]