Eusebius has been blamed still more severely for his treatment of Athanasius. But again the facts must be looked at impartially. It is necessary always to remember that Sabellianism was in the beginning and remained throughout his life the heresy which he most dreaded, and which he had perhaps most reason to dread. He must, even at the Council of Nicæa, have suspected Athanasius, who laid so much stress upon the unity of essence on the part of Father and Son, of a leaning toward Sabellianistic principles; and this suspicion must have been increased when he discovered, as he believed, that Athanasius' most staunch supporter, Eustathius, was a genuine Sabellian. Moreover, on the other side, it is to be remembered that Eusebius of Nicomedia, and all the other leading Arians, had signed the Nicene creed and had proclaimed themselves thoroughly in sympathy with its teaching. Our Eusebius, knowing the change that had taken place in his own mind upon the controverted points, may well have believed that their views had undergone even a greater change, and that they were perfectly honest in their protestations of orthodoxy. And finally, when Arius himself presented a confession of faith which led the Emperor, who had had a personal interview with him, to believe that he had altered his views and was in complete harmony with the Nicene faith, it is not surprising that our Eusebius, who was naturally unsuspicious, conciliatory and peace-loving, should think the same thing, and be glad to receive Arius back into communion, while at the same time remaining perfectly loyal to the orthodoxy of the Nicene creed which he had subscribed. Meanwhile his suspicions of the Arian party being in large measure allayed, and his distrust of the orthodoxy of Athanasius and of his adherents being increased by the course of events, it was only natural that he should lend more or less credence to the calumnies which were so industriously circulated against Athanasius. To charge him with dishonesty for being influenced by these reports, which seem to us so absurd and palpably calumnious, is quite unwarranted. Constantine, who was, if not a theologian, at least a clear-headed and sharp-sighted man, believed them, and why should Eusebius not have done the same? The incident which took place at the Council of Tyre in connection with Potamo and himself was important; for whatever doubts he may have had up to that time as to the truth of the accusations made against Athanasius and his adherents, Potamo's conduct convinced him that the charges of tyranny and high-handed dealing brought against the whole party were quite true. It could not be otherwise than that he should believe that the good of the Alexandrian church, and therefore of the Church at large, demanded the deposition of the seditious and tyrannous archbishop, who was at the same time quite probably Sabellianistic in his tendencies. It must in justice be noted that there is not the slightest reason to suppose that our Eusebius had anything to do with the dishonorable intrigues of the Arian party throughout this controversy. Athanasius, who cannot say enough in condemnation of the tactics of Eusebius of Nicomedia and his supporters, never mentions Eusebius of Cæsarea in a tone of bitterness. He refers to him occasionally as a member of the opposite party, but he has no complaints to utter against him, as he has against the others. This is very significant, and should put an end to all suspicions of unworthy conduct on Eusebius' part. It is to be observed that the latter, though having good cause as he believed to condemn Athanasius and his adherents, never acted as a leader in the war against them. His name, if mentioned at all, occurs always toward the end of the list as one of the minor combatants, although his position and his learning would have entitled him to take the most prominent position in the whole affair, if he had cared to. He was but true to his general character in shrinking from such a controversy, and in taking part in it only in so far as his conscience compelled him to. We may suspect indeed that he would not have made one of the small party that repaired to Constantinople in response to the Emperor's imperious summons had it not been for the celebration of Constantine's tricennalia, which was taking place there at the time, and at which he delivered, on the special invitation of the Emperor and in his presence, one of his greatest orations. Certain it is, from the account which he gives in his Vita Constantini, that both in Constantinople and in Jerusalem the festival of the tricennalia, with its attendant ceremonies, interested him much more than did the condemnation of Athanasius.
§8. Eusebius and Marcellus.
It was during this visit to Constantinople that another synod was held, at which Eusebius was present, and the result of which was the condemnation and deposition of the bishop Marcellus of Ancyra (see Socrates, I. 36; Sozomen, II. 33; Eusebius, Contra Marc. II. 4). The attitude of our Eusebius toward Marcellus is again significant of his theological tendencies. Marcellus had written a book against Asterius, a prominent Arian, in which, in his zeal for the Nicene orthodoxy, he had laid himself open to the charge of Sabellianism. On this account he was deposed by the Constantinopolitan Synod, and our Eusebius was urged to write a work exposing his errors and defending the action of the Council. As a consequence he composed his two works against Marcellus which will be described later. That Eusebius, if not in the case of Athanasius and possibly not in that of Eustathius, had at least in the present case good ground for the belief that Marcellus was a Sabellian, or Sabellianistic in tendency, is abundantly proved by the citations which he makes from Marcellus' own works; and, moreover, his judgment and that of the Synod was later confirmed even by Athanasius himself. Though not suspecting Marcellus for some time, Athanasius finally became convinced that he had deviated from the path of orthodoxy, and, as Newman has shown (in his introduction to Athanasius' fourth discourse against the Arians, Oxford Library of the Fathers, vol. 19, p. 503 sq.), directed that discourse against his errors and those of his followers.
The controversy with Marcellus seems to have been the last in which Eusebius was engaged, and it was opposition to the dreaded heresy of Sabellius which moved him here as in all the other cases. It is important to emphasize, however, what is often overlooked, that though Eusebius during these years was so continuously engaged in controversy with one or another of the members of the anti-Arian party, there is no evidence that he ever deviated from the doctrinal position which he took at the Council of Nicæa. After that date it was never Arianism which he consciously supported; it was never the Nicene orthodoxy which he opposed. He supported those members of the old Arian party who had signed the Nicene creed and protested that they accepted its teaching, against those members of the opposite party whom he believed to be drifting toward Sabellianism, or acting tyrannously and unjustly toward their opponents. The anti-Sabellianistic interest influenced him all the time, but his post-Nicene writings contain no evidence that he had fallen back into the Arianizing position which he had held before 325. They reveal, on the contrary, a fair type of orthodoxy, colored only by its decidedly anti-Sabellian emphasis.
§9. The Death of Eusebius.
In less than two years after the celebration of his tricennalia, on May 22, 337 a.d., the great Constantine breathed his last, in Nicomedia, his former Capital. Eusebius, already an old man, produced a lasting testimonial of his own unbounded affection and admiration for the first Christian emperor, in his Life of Constantine. Soon afterward he followed his imperial friend at the advanced age of nearly, if not quite, eighty years. The exact date of his death is unknown, but it can be fixed approximately. We know from Sozomen (H. E. III. 5) that in the summer of 341, when a council was held at Antioch (on the date of the Council, which we are able to fix with great exactness, see Hefele, Conciliengesch. I. p. 502 sq.) Acacius, Eusebius' successor, was already bishop of Cæsarea. Socrates (H. E. II. 4) and Sozomen (H. E. III. 2) both mention the death of Eusebius and place it shortly before the death of Constantine the younger, which took place early in 340 (see Tillemont's Hist. des Emp. IV. p. 327 sq.), and after the intrigues had begun which resulted in Athanasius' second banishment. We are thus led to place Eusebius' death late in the year 339, or early in the year 340 (cf. Lightfoot's article, p. 318).