On the one hand, we find him insisting on the right of private judgment, as when he discusses the overruling Providence in Julian's life, and especially on the infatuation which led the emperor to Persia in spite of Sallust (vi. 1): "This observation, however, is only inserted lest I should be blamed for omitting it. I leave every one to form his own opinion." So, after discussing the use of penance, he remarks in the following chapter (vii. 17): "Such subjects as the above, however, are best left to the decision of individual judgment." He would also allow latitude in ceremonials (vii. 19), as we shall see. On the other hand, he dreads the progressive and unsettling outcome of the private judgment in exercise. He expresses this fear in iv. 27: "The spirit of innovation is self-laudatory; hence it advanced farther and farther, and crept along to greater novelties. With increasing self-conceit, and in scorn of the fathers, it enacted laws of its own. Nor does it honor the doctrine of the ancients concerning God, but is always excogitating strange dogmas and restlessly adds novelty to novelty, as the events now show."
Of the threatening strategies of free thought in his own day, he devoutly exclaimed: "That new heresies have not prevailed in our times, we shall find to be due especially to her" (Pulcheria) (ix. 1). Consequently he deprecates the deleterious influence of polemics. On the accession of Jovian, he says: "The presidents of the churches now resumed the agitation of doctrinal questions and discussions. They had remained quiet during the reign of Julian, when Christianity itself was endangered, and had unanimously offered up their supplications for the mercy of God. It is thus that men, when attacked by foreign enemies, remain in accord among themselves; but when external troubles are removed, then internal dissensions creep in" (vi. 4 and in vi. 25).
"Thus do the private animosities of the clergy from time to time greatly injure the Church and divide religion into many heresies! And this is a proof; for had George, like Theodotus, received Apolinarius, on his repentance, into communion, I believe that we should never have heard of the heresy that bears his name. Men are prone, when loaded with opprobrium and contempt, to resort to rivalries and innovations; whereas, when treated with justice, they become moderate and remain in the same position." More emphatic still is his protest in vi. 26: "Those varying dogmas are the source of innumerable troubles to religion, and many are deterred from embracing Christianity by the diversity of opinion which prevails in matters of doctrine." In the beginning of this same chapter, in speaking of the Eunomians, he delineates them thus: "They do not applaud a good course of life or manner of conduct, or mercy towards the needy, unless exhibited by persons of their own sect, so much as skill in disputation and the power of triumphing in debates." This is a great blow at the sectores cymini, and at pride in polemics; the whole tone is much more liberal than that of the ecclesiastic Theodoret, or even the lawyer Evagrius. Sozomen, like Socrates, represents a generous feeling current among the laymen of Constantinople in court and among the trades and professions. The attitude of the Catholic Church with regard to baptism he sets forth adequately as trivial, and argues against the Eunomian innovation of one baptism and a change in the formula (vi. 21): "But whether it was Eunomius or any other person who first made these innovations upon the tradition of baptism, it seems to me that such innovators, whoever they may have been, were alone in danger, according to their own representation, of quitting this life without having received Divine baptism." The argument here is an unusually long one; with his generation he held to the magical efficacy of the rite. The theory of the sacraments as mysteries or arcane, was one which controlled him throughout, and even limited his fidelity as a historian. Thus in i. 20: "I thought it necessary to reproduce the very document (the Nicene Creed) concerning these matters, as an example of the truth, in order that posterity might possess in a fixed and clear form, the symbol of that faith which proved pacifying at the time; but since some pious friends who understood such matters, recommended that these truths ought to be spoken of and heard by the initiated and their initiators only, I agreed with their counsel: for it is not unlikely that some of the uninitiated may read this book: while I have concealed such of the prohibited material as I ought to keep silent about, I have not altogether left the reader ignorant of the opinions held by the Synod." Nor will he repeat the symbol as subjoined to the letter of the council of Antioch (vi. 4); and when the Macedonian commission to Liberius make their statement, and the text is given to show their entire acceptance of the Nicene view, Sozomen will not reproduce it. Again in vi. 29, Mark was a monk of "such eminent piety, that Macarius himself, the presbyter of Celliæ, declared that he had never given to him what priests present to the initiated at the holy table; but that an angel, administering it to him, whose hand up to the forearm, he declared himself to have seen." In viii. 5, in giving the account of a marvelous judgment wrought on a Macedonian wife, who pretended to be a convert to the Nicene views, and thus frequented the orthodox ceremony of the Supper, he remarks, "At the time of the celebration of the mysteries (the initiated will understand what I mean), this woman kept what was given her, and held down her head as if engaged in prayer." In reciting the disturbances at the Easter celebration over the decree of exile against Chrysostom (viii. 21), he says: "They were charged with the commission of such disorderly acts as can be readily conceived by those who have been admitted to the mysteries, but which I consider it requisite to pass over in silence, lest my work should fall into the hands of the uninitiated." Here we have a glimpse of the scope of the arcane as well as the weakness of the historian in submitting to the advice of narrow friends; no other historian felt bound to restrict himself in such matters. Sozomen here joined the most extreme sacramentarians of his day. On the weighty matter of discipline, he believes with the Catholic Church in receiving back the penitent into the Church, against Novatian and Donatistic practices. He expresses his opinion at some length, though not so fully as Socrates, in the chapter which relates to the abolition of the penitential presbyter (vii. 16): "Impeccability is a Divine attribute, and belongs not to human nature; therefore God has decreed that pardon should be extended to the penitent even after many transgressions. As in supplicating for pardon, it is requisite to confess the sin, it seems probable that the priests, from the beginning, considered it irksome to make this confession in public, before the whole assembly of the people. They appointed a presbyter of the utmost sanctity and the most undoubted prudence, to act on those occasions: the penitents went to him and confessed their transgressions; and it was his office to indicate the kind of penance adapted to each sin, and then when satisfaction had been made, to pronounce absolution." He deplores the abolition of the office as the occasion of laxity. The deterrent force of public confession was now lost, and that to the danger of Christian conduct. He sympathizes also with that form of martyrdom which wantonly and ruthlessly assails paganism and is slain in the attempt. The system of relic-worship, so characteristic of any decline of opportunity for heroic action, had set in overwhelmingly, and he believed in it vigorously. Our own age reproduces the same tendency not only in religious, but in secular forms, and among Protestants as well. Thus he commemorates: of Old Testament prophets, Micah and Habakkuk (vii. 29), Zechariah (ix. 17); of the preparatory period, the head of John the Baptist (vii. 21); of the Apostolic Church, St. Stephen (vii. 29, ix. 16); of the martyrs, Babylas (v. 19), Forty Soldiers (ix. 2); of the monks, Hilarion (iii. 14), the four brothers (vii. 9). The most prominent of secondary relics is the cross with its inscriptions and nails (ii. 1). The discovery of these is mainly through prayer and heavenly signs; their possession is an object of imperial ambition; the removal and transportation of them are effected with most gorgeous and reverent pomp; and the sacred treasures become the agents of endless miracles.
Sozomen, like Socrates and Chrysostom, believes in freedom as to old-time ceremonials. He has a chapter on the varieties of religious usage (vii. 19); and the record is largely the result of his own inquiry. He remarks in conclusion: "Many other customs are still to be observed in cities and villages; and those who have been brought up in their observance would, from respect to the great men who instituted and perpetuated these customs, consider it wrong to abolish them. Similar motives must be attributed to those who observe different practices in the celebration of the fast, which has led us into this long digression." From his point of view, uniformity may not encroach upon individualism beyond a certain point. He is certainly quietly and with dignity attacking a party of narrow uniformitarians, who are already pressing for a harmony of all ceremonials in Christendom.
Another feature of the Catholic system that he traces carefully, is the relation between Church and Empire. He devotes more attention to this aspect of polity than to its internal development; this latter he touches upon incidentally, and not at all carefully. We have seen how painstakingly he cites the imperial edicts with regard to the Church. The state laws, which at first expressed conciliar decisions, were followed by independent imperial enactments. These, indeed, are at first sporadic, but become more and more the rule. The personal views of Sozomen appear in the narrative, but they are fluctuating. He acquiesces in the imperial convocation of councils, as do all his cotemporaries. On the death of Constantine, in commenting upon the hereafter fixed Christian character of the state, he says: "The sacerdotal dignity is not only equal in honor to imperial power, but in sacred places even takes the ascendancy" (ii. 34). With the plan of producing uniformity of religion in the empire, he seems to sympathize (iv. 11). He is indignant at Julian's indifference to the murder of Zeno by the inhabitants of Gaza, and at the deprivations of the Christians, when all their political and personal rights were taken from them (v. 9). To the charge of Libanius, that the man who aimed the dart at Julian was a Christian, and belonged to the race of habitual transgressors of the law, Sozomen replies by defending the regicide: "In the documents above quoted, Libanius clearly states that the emperor fell by the hand of a Christian; and this probably was the truth. It is not unlikely that some of the soldiers who then served in the Roman army might have conceived the idea, since Greeks and all men until this day have praised tyrannicides, for exposing themselves to death in the cause of liberty, and spiritedly standing by their country, their families, and their friends. Still less is he deserving of blame, who for the sake of God and of religion, performed so bold a deed" (vi. 2). This is the highest stand that a lawyer could take in support of individualism. In his view of the exalted prerogatives of the Church, the reply of Valentinian to the bishops, who desired to hold a council, would seem happy. "I am but one of the laity, and have, therefore, no right to interfere in these transactions; let the priests, to whom such matters appertain, assemble where they please" (vi. 7). Theodosius' compulsory course with regard to paganism and orthodoxy, and the choice of Nectarius, are approved. On the other hand, he selected two instances out of many from the life of Ambrose, for the purpose of illustrating how, in God's behalf, that bishop conducted himself towards those in power (vii. 25).
Throughout we find him recognizing the practical headship of Rome; he expresses himself unconsciously in vi. 22, "The question having been thus decided by the Roman Church, peace was restored and the inquiry ended." This ignores the action of the Synod of Alexandria and that of Constantinople itself, for both had decreed the consubstantiality of the Holy Spirit and opposed the christology of Apolinarius, prior to the action of the Roman Synod. The power delegated to Julius by the council of Sardica (iii. 8), the conflict between the East and the West conducted in mutually arrogant epistles (iii. 10), the subordination of new to old Rome (vii. 9), show the drift toward concentration. Sozomen does not seem to understand the rival movements of Alexandria under Athanasius and Theophilus; nor the Eastern imperial attempts to elevate Constantinople to the supremacy, nor the mutterings of Antiochan jealousy.