About the middle of the second century, however, the moral and rationalistic element in the philosophy and spiritual culture of the time was still more powerful than the religious and mystic; for Neoplatonism, which under its outward coverings concealed the aspiration after religion and the living God, was only in its first beginnings. It was not otherwise in Christian circles. The "Gnostics" were in the minority. What the great majority of the Church felt to be intelligible and edifying above everything else was an earnest moralism.[348] New and strange as the undertaking to represent Christianity as a philosophy might seem at first, the Apologists, so far as they were understood, appeared to advance nothing inconsistent with Christian common sense. Besides, they did not question authorities, but rather supported them, and introduced no foreign positive materials. For all these reasons, and also because their writings were not at first addressed to the communities, but only to outsiders, the marvellous attempt to present Christianity to the world as the religion which is the true philosophy, and as the philosophy which is the true religion, remained unopposed in the Church. But in what sense was the Christian religion set forth as a philosophy? An exact answer to this question is of the highest interest as regards the history of Christian dogma.

2. Christianity as Philosophy and as Revelation.

It was a new undertaking and one of permanent importance to a tradition hitherto so little concerned for its own vindication, when Quadratus and the Athenian philosopher, Aristides, presented treatises in defence of Christianity to the emperor.[349] About a century had elapsed since the Gospel of Christ had begun to be preached. It may be said that the Apology of Aristides was a most significant opening to the second century, whilst we find Origen at its close. Marcianus Aristides expressly designates himself in his pamphlet as a philosopher of the Athenians. Since the days when the words were written: "Beware lest any man spoil you through philosophy and vain deceit" (Col. II. 8), it had constantly been repeated (see, as evidence, Celsus, passim) that Christian preaching and philosophy were things entirely different, that God had chosen the fools, and that man's duty was not to investigate and seek, but to believe and hope. Now a philosopher, as such, pleaded the cause of Christianity. In the summary he gave of the content of Christianity at the beginning of his address, he really spoke as a philosopher and represented this faith as a philosophy. By expounding pure monotheism and giving it the main place in his argument, Aristides gave supreme prominence to the very doctrine which simple Christians also prized as the most important.[350] Moreover, in emphasing not only the supernatural character of the Christian doctrine revealed by the Son of the Most High God, but also the continuous inspiration of believers—the new race (not a new school)—he confessed in the most express way the peculiar nature of this philosophy as a divine truth. According to him Christianity is philosophy because its content is in accordance with reason, and because it gives a satisfactory and universally intelligible answer to the questions with which all real philosophers have concerned themselves. But it is no philosophy, in fact it is really the complete opposite of this, in so far as it proceeds from revelation and is propagated by the agency of God, i.e., has a supernatural and divine origin, on which alone the truth and certainty of its doctrines finally depend. This contrast to philosophy is chiefly shown in the unphilosophical form in which Christianity was first preached to the world. That is the thesis maintained by all the Apologists from Justin to Tertullian,[351] and which Jewish philosophers before them propounded and defended. This proposition may certainly be expressed in a great variety of ways. In the first place, it is important whether the first or second half is emphasised, and secondly, whether that which is "universally intelligible" is to be reckoned as philosophy at all, or is to be separated from it as that which comes by "nature." Finally, the attitude to be taken up towards the Greek philosophers is left an open question, so that the thesis, taking up this attitude as a starting-point, may again assume various forms. But was the contradiction which it contains not felt? The content of revelation is to be rational; but does that which is rational require a revelation? How the proposition was understood by the different Apologists requires examination.

Aristides. He first gives an exposition of monotheism and the monotheistic cosmology (God as creator and mover of the universe, as the spiritual, perfect, almighty Being, whom all things need, and who requires nothing). In the second chapter he distinguishes, according to the Greek text, three, and, according to the Syriac, four classes of men (in the Greek text polytheists, Jews, Christians, the polytheists being divided into Chaldeans, Greeks, and Egyptians; in the Syriac barbarians, Greeks, Jews, Christians), and gives their origin. He derives the Christians from Jesus Christ and reproduces the Christian kerygma (Son of the Most High God, birth from the Virgin, 12 disciples, death on the cross, burial, resurrection, ascension, missionary labours of the 12 disciples). After this, beginning with the third chapter, follows a criticism of polytheism, that is, the false theology of the barbarians, Greeks, and Egyptians (down to chapter 12). In the 13th chapter the Greek authors and philosophers are criticised, and the Greek myths, as such, are shown to be false. In the 14th chapter the Jews are introduced (they are monotheists and their ethical system is praised; but they are then reproached with worshipping of angels and a false ceremonial). In the 15th chapter follows a description of the Christians, i.e., above all, of their pure, holy life. It is they who have found the truth, because they know the creator of heaven and earth. This description is continued in chapters 16 and 17: "This people is new and there is a divine admixture in it." The Christian writings are recommended to the emperor.

Justin.[352] In his treatise addressed to the emperor Justin did not call himself a philosopher as Aristides had done. In espousing the cause of the hated and despised Christians he represented himself as a simple member of that sect. But in the very first sentence of his Apology he takes up the ground of piety and philosophy, the very ground taken up by the pious and philosophical emperors themselves, according to the judgment of the time and their own intention. In addressing them he appeals to the λογος σωφρων in a purely Stoic fashion. He opposes the truth—also in the Stoic manner—to the δοξαις παλαιων.[353] It was not to be a mere captatio benevolentiæ. In that case Justin would not have added: "That ye are pious and wise and guardians of righteousness and friends of culture, ye hear everywhere. Whether ye are so, however, will be shown."[354] His whole exordium is calculated to prove to the emperors that they are in danger of repeating a hundredfold the crime which the judges of Socrates had committed.[355] Like a second Socrates Justin speaks to the emperors in the name of all Christians. They are to hear the convictions of the wisest of the Greeks from the mouth of the Christians. Justin wishes to enlighten the emperor with regard to the life and doctrines (βιος και μαθηματα) of the latter. Nothing is to be concealed, for there is nothing to conceal.

Justin kept this promise better than any of his successors. For that very reason also he did not depict the Christian Churches as schools of philosophers (cc. 61-67). Moreover, in the first passage where he speaks of Greek philosophers,[356] he is merely drawing a parallel. According to him there are bad Christians and seeming Christians, just as there are philosophers who are only so in name and outward show. Such men, too, were in early times called "philosophers" even when they preached atheism. To all appearance, therefore, Justin does not desire Christians to be reckoned as philosophers. But it is nevertheless significant that, in the case of the Christians, a phenomenon is being repeated which otherwise is only observed in the case of philosophers; and how were those whom he was addressing to understand him? In the same passage he speaks for the first time of Christ. He introduces him with the plain and intelligible formula: 'ο διδασκαλος Χριστος ("the teacher Christ").[357] Immediately thereafter he praises Socrates because he had exposed the worthlessness and deceit of the evil demons, and traces his death to the same causes which are now he says bringing about the condemnation of the Christians. Now he can make his final assertion. In virtue of "reason" Socrates exposed superstition; in virtue of the same reason, this was done by the teacher whom the Christians follow. But this teacher was reason itself; it was visible in him, and indeed it appeared bodily in him.[358]

Is this philosophy or is it myth? The greatest paradox the Apologist has to assert is connected by him with the most impressive remembrance possessed by his readers as philosophers. In the same sentence where he represents Christ as the Socrates of the barbarians,[359] and consequently makes Christianity out to be a Socratic doctrine, he propounds the unheard of theory that the teacher Christ is the incarnate reason of God.

Justin nowhere tried to soften the effect of this conviction or explain it in a way adapted to his readers. Nor did he conceal from them that his assertion admits of no speculative demonstration. That philosophy can only deal with things which ever are, because they ever were, since this world began, is a fact about which he himself is perfectly clear. No Stoic could have felt more strongly than Justin how paradoxical is the assertion that a thing is of value which has happened only once. Certain as he is that the "reasonable" emperors will regard it as a rational assumption that "Reason" is the Son of God,[360] he knows equally well that no philosophy will bear him out in that other assertion, and that such a statement is seemingly akin to the contemptible myths of the evil demons.

But there is certainly a proof which, if not speculative, is nevertheless sure. The same ancient documents, which contain the Socratic and super-Socratic wisdom of the Christians, bear witness through prophecies, which, just because they are predictions, admit of no doubt, that the teacher Christ is the incarnate reason; for history confirms the word of prophecy even in the minutest details. Moreover, in so far as these writings are in the lawful possession of the Christians, and announced at the very beginning of things that this community would appear on the earth, they testify that the Christians may in a certain fashion date themselves back to the beginning of the world, because their doctrine is as old as the earth itself (this thought is still wanting in Aristides).

The new Socrates who appeared among the barbarians is therefore quite different from the Socrates of the Greeks, and for that reason also his followers are not to be compared with the disciples of the philosophers.[361] From the very beginning of things a world-historical dispensation of God announced this reasonable doctrine through prophets, and prepared the visible appearance of reason itself. The same reason which created and arranged the world took human form in order to draw the whole of humanity to itself. Every precaution has been taken to make it easy for any one, be he Greek or barbarian, educated or uneducated, to grasp all the doctrines of this reason, to verify their truth, and test their power in life. What further importance can philosophy have side by side with this, how can one think of calling this a philosophy?