In this address, to which we cannot wonder that Constantius made no response, there is much that is remarkable. There is no doubt that Hilary's exile had been a political measure, and that the Emperor, in this as in the numerous other cases of the same kind, had acted deliberately and with full knowledge of the circumstances in the way that seemed to him most conducive to the interests of permanent peace. Hilary's assumption that Constantius had been deceived is a legitimate allusion, which no one could misunderstand, to a fact which could not be respectfully stated. That he should have spoken as he did, and indeed that he should have raised the subject at all, is a clear sign of the uncertainty of the times. A timorous appeal for mercy would have been useless; a bold statement of innocence, although, as things turned out, it failed, was an effort worth making to check the Homoean advance. Saturninus, as we saw, was one of the Court party among the bishops, and he was an enemy of Julian, who was soon to permit his deposition. Julian's knowledge of Hilary can have been but small; his exile began within a month or two of the Cæsar's arrival in Gaul, and Julian was not responsible for it. For good or for evil, he had little to say in the case. But the suspicions were already aroused which were soon to lead to Julian's revolt, and Constantius had begun to give the orders which would lessen Julian's military force, and were, as he supposed, intended to prepare his downfall. To appeal to Julian and to attack Saturninus was to remind Constantius very broadly that great interests were at stake, and that a protector might be found for the creed which he persecuted. And his double mention of the West (§§ 8, 10) as able to teach the truth, and as needing to be reconciled with the East, has a political ring. It suggests that the Western provinces are a united force, with which the Emperor must reckon. The fact that Constantius, though he did not grant the meeting in his own presence with Saturninus, which Hilary had asked for, yet did grant the substance of his prayer, allowing him to return without obstacle to his diocese, seems to shew that the Emperor felt the need for caution and concession in the West.
The theological part of the letter is even more remarkable. Its doctrine is, of course, exactly that of the De Trinitate. The summary of Scripture proofs for the doctrine in § 11, the allusion to unlearned fishermen who have been teachers of the Faith [62] , and several other passages, are either anticipations or reminiscences of that work. But the interest of the letter lies in its bold proposal to go behind all the modern creeds, of the confusion of which a vivid picture is drawn, and revert to the baptismal formula. Here is a leading combatant on the Catholic side actually proposing to withdraw the Nicene confession:--Amid these shipwrecks of faith, when our inheritance of the heavenly patrimony is almost squandered, our safety lies in clinging to that first and only Gospel Faith which we confessed and apprehended at our Baptism, and in making no change in that one form which, when we welcome it and listen to it, brings the right faith. [63] I do not mean that we should condemn as a godless and blasphemous writing the work of the Synod of our fathers; yet rash men make use of it as a means of gain saying' (§ 7). The Nicene Creed [64] , Hilary goes on to say, had been the starting-point of an endless chain of innovations and amendments, and thus had done harm instead of good. We have seen that Hilary was not only acting with the Semiarians, but was nearer to them in many ways than he was to Athanasius. The future of his friends was now in doubt; not only was their doctrine in danger, but, after the example they had themselves set, they must have been certain that defeat meant deposition. This was a concession which only a sense of extreme urgency could have induced Hilary to make. Yet even now he avoids the mistake of Liberius. He offers to sign no compromising creed; he only proposes that all modern creeds be consigned to the same oblivion. It was, in effect, the offer of another compromise in lieu of the Homoean; though Hilary makes it perfectly clear what is, in his eyes, the only sense in which this simple and primitive confession can honestly be made, yet assuredly those whose doctrine most widely diverged would have felt able to make it. That the proposal was sincerely meant, and that his words, uncompromising as they are in assertion of the truth, were not intended for a simple defiance of the enemy, is shewn by the list of heretics whom he advances, in § 9, in proof of his contention that all error claims to be based on Scripture. Three of them, Montanus, Manichæus and Marcion, were heretics in the eyes of an Arian as much as of a Catholic; the other three, Marcellus, Photinus and Sabellius, were those with whom the Arians were constantly taunting their adversaries. Hilary avoids, deliberately as we may be sure, the use of any name which could wound his opponents. But bold and eloquent and true as the appeal of Hilary was, it was still less likely that his petition for a hearing in Council should be granted than that he should be allowed to disprove the accusations which had led to his exile. The Homoean leaders had the victory in their hands, and they knew it, if Hilary and his friends were still in the dark. They did not want conciliation, but revenge, and this appeal was foredoomed to failure. The end of the crisis soon came. The Semiarian leaders were deposed, not on the charge of heresy, for that would have been inconsistent with the Homoean position and also with their acquiescence in the Homoean formula, but on some of those complaints concerning conduct which were always forthcoming when they were needed. Among the victims was not only Basil of Ancyra, Hilary's friend, but also Macedonius of Constantinople, who was in after days to be the chief of the party which denied the true Godhead of the Holy Ghost. He and his friends were probably unconscious at this time of the gulf which divided them from such men as Hilary, who for their part were content, in the interests of unity, with language which understated their belief, or else had not yet a clear sense of their faith upon this point. In any case it was well that the final victory of the true Faith was not won at this time, and with the aid of such allies; we may even regard it as a sign of some short-sightedness on Hilary's part that he had thrown himself so heartily into their cause. But he, at any rate, was not to suffer. The two Eastern parties, Homoean and Semiarian, which alternately ejected one another from their sees, were very evenly balanced, and though Constantius was now on the side of the former, his friendship was not to be trusted. The solid orthodoxy of the West was an influence which, as Hilary had hinted, could not be ignored; and even in the East the Nicenes were a power worth conciliating. Hence the Homoeans gave a share of the Semiarian spoils to them [65] ; and it was part of the same policy, and not, as has been quaintly suggested, because they were afraid of his arguments, that they permitted Hilary to return to Gaul. Reasons of state as well as of ecclesiastical interest favoured his restoration.
In the late revolution, though the Faith had suffered, individual Catholics had gained. But the party to which Hilary had attached himself, and from which he had hoped so much was crushed; and his personal advantage did not compensate, in his eyes, for the injury to truth. He has left us a memorial of his feelings in the Invective against Constantius, one of the bitterest documents of a controversy in which all who engaged were too earnest to spare their opponents. It is an admirable piece of rhetoric suffused with passion, not the less spontaneous because its form, according to the canons of taste of that time, is perfect. For we must remember that the education of the day was literary, its aim being to provide the recipient with a prompt and felicitous expression of his thoughts, whatever they might be. The invective was certainly written in the first place as a relief to Hilary's own feelings; he could not anticipate that Constantius had changed his views for the last time; that he would soon cease to be the master of Gaul, and would be dead within some eighteen months. But the existence of other attacks upon Constantius, composed about this time, makes it probable that there was some secret circulation of such documents; and we can as little accuse the writers of cowardice, when we consider the Emperor's far-reaching power, as we can attribute to them injustice towards him.