The political unification of the most civilized portion of the globe was begun by the conquests of Alexander and completed by those of Rome. Sociological homogeneity was attendant on centralization of government. From Britain to North Africa and from Spain to Asia Minor thought flowed through the same channels. Rome and Greece dominated the world between them; while the former assumed the physical control of the nations, the latter held their mental faculties in subjection. Progressively, however, influences began to permeate the Empire which were foreign to both Latins and Hellenes. East and west confronted each other on the Asiatic frontier; Egyptians and Jews were commingled with the Latin and Greek races in the great mart of Alexandria. Oriental mysticism became rife, and gods of every nationality were received into the bosom of Rome.[975] In the first century of the Christian era the times were ripe for new religious beliefs. By the expansion of the Roman dominions the classes had become cosmopolitan, and a wide experience of men and manners had dissipated the rustic simplicity of the Republic. The society of the Empire was enlightened by the speculations of Greek philosophy; it became versed in metaphysical discussion, and soon conceived an irreverence for the divinities of a ruder age.[976] Everywhere the same level of mental apprehension was ultimately reached. Then the inanity of earthly existence began to be acutely felt. The thoughtful looked through the void and saw nowhere for the mind to rest. Zeal for public distinction had been suppressed by military despotism, and the pride which animates the strenuous virtues of a rising commonwealth was extinct. Levity pervaded the aimless crowd who lived only for the diversion of the hour. Nature had been interrogated repeatedly with an invariably negative result; her secret, if she possessed one, seemed to be impenetrable and destined to remain for ever unknown. No discovery in science had opened up the vista of a path which led through inexhaustible fields of knowledge. The psychical unrest longed for new ideals and was willing to be appeased by the slightest semblance of a revelation. Religion-making became a craft which was followed by more than one practitioner in all the chief cities of the Empire. A host of charlatans arose and made many victims by pretending to theurgic powers.[977] Agitated by vague impulses the social units drifted with indeterminable currents, for more than a century before the heterogeneous elements which were in commotion showed a tendency to group themselves under any concrete forms. At length the appearances of a settlement became visible, and three distinct forms emerged successively from the previously existing chaos, each of which claimed to have sounded the abysmal depths and to have brought to the surface the inestimable balm which was to salve the bruised souls of humanity. But they beheld each other with horror and contempt, and a contest was initiated between them on the theatre of the Empire for the spiritual dominion of mankind.

I. In the year 28 A.D., the fifteenth of the reign of Tiberius, Pontius Pilate was governor of Judaea, the subordinate officer of Aelius Lamia, the Imperial legate of Syria.[978] At that point of time a man, previously unknown among the Jews, assumed the rôle of a public teacher of religion and ethics and devoted himself to an itinerant mission throughout the cities and districts of Palestine. He seemed to be about thirty years old and it was soon realized that he was a certain Jesus who had hitherto worked as a carpenter, his father’s trade, in his native village of Nazareth. He preached a reformation of manners among the people generally, and rebuked with a penetrating bitterness the pride and hypocrisy of the chief men of his own race. At the outset of his career he summoned to his assistance twelve men of the same humble rank as himself and enjoined them to follow his example. He did not confine himself to hortatory discourses, but proved on numerous occasions that he had the gift of working miracles. At his command the sick were healed and even the dead returned to life. Those who were possessed with devils he immediately released from their baleful thraldom.[979] The laws of nature appeared to be subject to his will and were reversed whenever he thought fit to exert his power over them. Finally he declared himself to be the Messiah or Christ, a more than mortal being whom the Jews expected to rescue them from their political abasement and raise them to a position of national supremacy. Israel as a body rejected his claims with scorn and derision; his ministry of peace afforded no prospect of the rehabilitation they aspired to.[980] He met them in the temple at Jerusalem and they demanded of him a sign that he was an emissary sent from heaven. In reply he assailed them with vituperation and hurried from the precincts. Amongst his own following he explained himself; his design had been entirely misconceived; he was the son of Jehovah and his kingdom was not of this world. He had been sent to reconcile his own nation to his father, the ruler of the universe, whom they had offended by their moral laxity and corruption. He would shortly depart from the earth, but he would soon return with all the powers of heaven to judge the inhabitants of this lower sphere. Then the just would be received into a state of bliss without end, whilst the wicked should be consigned to everlasting torment. He persisted in his didactic work, which tended to make the chief priests and elders odious in the eyes of the people, until they determined to compass his destruction. Ultimately he was seized and brought before the Roman governor as a mover of sedition, but Pilate was unconcerned and wished to release him. His accusers insisted, he yielded and, after suffering every indignity, Jesus was crucified between two thieves on mount Calvary during the Paschal festival of A.D. 29, under the consulship of the two Gemini.[981] But his disciples had been forewarned by their master that his death in the guise of a malefactor was preordained as an atonement to effect the redemption of the world from sin. Had it been otherwise legions of angels would descend to discomfort his impious antagonists. At the same time he predicted that he would rise from the dead on the third day after the burial of his body. This promise was fulfilled, his sepulchre was found empty, and Jesus appeared again to his disciples. He discoursed with them for forty days, constituted them apostles to preach his Gospel not only to the Jews, but also to the Gentiles, and in their presence ascended into the heavens until the clouds received him out of their sight.

Such was the astounding relation elicited with some difficulty from a sect of new religionists called Christians, who, as early as the reign of Nero, were sufficiently numerous at Rome to have incurred the hatred of the populace through their austere disposition and their stern abjuration of the national gods.[982] In the year 64 the city was devastated by an appalling conflagration of which the insensate emperor was himself accused, but he shifted the odium to the already discredited recusants, and condemned many of them to perish in the flames by a peculiarly atrocious method.[983] Nevertheless the Christians maintained their ground and thirty years later were regarded with hostility by the tyrant Domitian as a body of proselytizing Jews in the capital.[984] At the dawn of the second century the younger Pliny found them so numerous in his province of Bithynia as almost to have subverted the established religion. In great concern he wrote to the Emperor Trajan questioning whether he should proceed to extremities in his efforts to suppress them. This epistle is extant, and through it some details were first made public as to their tenets and mode of worship. Before daybreak on a certain day they met and recited an address to Christ as to a god; bound themselves by oath to commit no crime against society, and partook together of a common meal. The cultured Roman, imbued with literature and philosophy, estimated the Christian belief as a depraved and extravagant superstition, the eradication of which was dictated by state policy, but his master counselled him to disregard it unless popular animosity should in particular instances compel him to drag its devotees from their obscurity.[985] The Christian missionaries pursued their labours unremittingly and were especially active among the proletariat, from whom during the first centuries their converts were almost exclusively drawn.[986] Throughout the length and breadth of the Empire they persistently undermined the existing order of things by teaching doctrines which were at variance with the received conception of Roman citizenship. Not only did they revile the pagan deities, whom they classed as demons instead of gods, and shun their festivals,[987] but they evinced an utter aversion for military service.[988] The polytheists were incensed at the pretensions of a deity who would not share the theocracy, but claimed to oust all other divinities from their seats and occupy the celestial throne alone,[989] whilst statesmen became alarmed at the prospect of political defection, and began to second the vulgar prejudice by systematic efforts at exterminating the spreading sect. The benignant Marcus Aurelius was induced to believe that the Christians were a danger to the state and he issued a decree (c. 177) that they should be sought out and put to death unless willing to abandon their faith.[990] This was the first decided persecution, but, although many perished, it proved ineffective, as no means available were strong enough to extinguish the flames of fanaticism. On the contrary, those who stood firm before the tribunals and were allowed to escape with their lives ranked afterwards as “Confessors,” a title more glorious in the eyes of their fellows than any temporal dignity; whilst constancy to the death became the essential qualification of Martyrs or witnesses to the truth, Saints who were admitted forthwith among the heavenly host as mediators between God and man.[991] As soon as the repressive measures were relaxed all the weaker brethren, who had abjured in the face of danger, prayed for readmission to the conventicles, and were usually received after the infliction of a term of penance. Once and again during the next century and a half widespread persecution was had recourse to by Decius and by Diocletian, but the Christians throve and prospered in the intervals despite of fitful and local hostility.[992] The memorable battle of the Milvian bridge in 312 proved to be a turning-point in the history of Rome and of Christianity; and the state religion of the ancient world was involved in the fall of the dissolute Maxentius. The victorious Constantine, as sole Emperor of the West, immediately concerted a measure with his colleague of the East, Licinius, for the establishment of religious toleration throughout their dominions.[993] Thenceforward Christianity was free to expand in obedience to the charge she had received at her origin and to apply herself to the task of supplanting every other belief.

The acceptance of all religions is pressed by an appeal to the supernatural sub-structure on which they profess to be based; and this claim is substantiated by the presentment of some miraculous circumstances from which they are asserted to have derived their birth. Evidential obscurity has always been the soul of such pretensions; and the truth of the most improbable occurrences has been resolutely maintained because assured witnesses could not be produced in order to prove a negative. But the time for historical discussion or sifting of evidence in relation to such matters has long gone by; and in the twentieth century the philosopher is enabled without examination to dismiss with a smile the mere suggestion that such events have occurred.[994] That any narrative, which in its essential statements consists largely of the marvellous, should be rejected as false in its entirety has almost risen to the dignity of a canon of historical criticism. The principle, however, has often been unduly strained in its application; and no judicious investigator would refuse to allow that a slender thread of fact may sometimes be extricated from a mass of incredible legend. The awe-inspiring life of Jesus emanates from authors of unascertainable date and repute. No neutral scribe, no adverse critic, has furnished us with any personal impressions of his career bearing the intrinsic marks of truth and simplicity. Nor can it be affirmed that any character fairly discernible on the stage of history ever knew an apostle. The Twelve who are credited with having disseminated the faith of the Gospel from east to west lie buried in a more than prehistoric obscurity, the writings ascribed to them doubted, denied, or clearly disproved.[995] It can scarcely be a matter of surprise, therefore, if some serious scholars of modern times have committed themselves to an absolute denial that the nominal founder of Christianity has had any real existence.[996] Yet the cause of mysticism was well served by the impenetrable cloud which hung over the mundane activity of Jesus. No common inquiry enabled the diligent adversaries of Christianity to strip the veil from the idealized figure, and expose its features to the gaze of vulgar observation. The philosophic critic was reduced to mere expressions of incredulity; and the despair of historians became the firmest pillar of belief in the church.[997]

II. In an idle hour Plato applied himself to shadowing forth a theological doctrine which should account for the origin and guidance of the objective universe.[998] A supreme god, the One or the Good,[999] at a certain moment conceived a creative design and fashioned the material world out of pre-existing elements.[1000] This task completed, he created intellect and soul; and by combining the two together produced living intelligence.[1001] He was now provided with all the requisite ingredients for peopling the world he had made; and his next step was to form a primal race of spiritual beings or daemons whom he endowed with immortality. From these by generation issued the whole progeny of gods worshipped by the Greeks, for whom their pedigrees and actions were recorded by Orpheus, Homer, and Hesiod. Among the divine existences were also to be reckoned the stars. At this stage the creative work of the One came to an end. He addressed the daemons and said: “You have observed my method of procedure when engaged in moulding yourselves. Follow my example and set about the production of mortal natures to inhabit the air, the water, and the earth.” They obeyed his behests, and the whole animal kingdom was the result of their labours. But the grosser matter with which mortal souls are weighed down is the essence of evil, and the just man will, therefore, desire to escape from the body in order to be free from its impure passions.[1002] For the Creator had appointed that each soul should be associated with a particular star, to whose blissful abode it might return as the reward of a life well spent on earth. The unrighteous soul, however, must first be chastened by an ordeal of transmigration through descending grades of lower animal natures, the least abased being that of a woman.

This cosmological phantasy of Plato was destined, after lying dormant for more than five centuries, to breathe a new spirit into the almost inanimate body of polytheism. The higher social caste, still adhering languidly to the old belief, counted among them many elevated minds devoted to the traditions of the past, who apprehended with dismay the dissolution of all they prized in the ebbing tide of Paganism. The effete superstition could only be sustained by some process of depuration capable of reconciling it with the more refined perceptions of the age. The required influence was at hand. From Alexandria, where an international fusion of philosophies and religions had been in progress almost since the foundation of the city, a new dispensation proceeded before the middle of the third century. In that capital, the Greek was penetrated by the spirit of Oriental mysticism, and the Jew was fascinated by the intellectual ascendancy of the schools of Athens. The ancient rivalry of sects had almost died out, and a later generation of inquirers adopted freely whatever they could assimilate from various systems of philosophy.[1003] After passing tentatively through several stages from the first years of our era, a theological doctrine under the name of Platonism was elaborated by the Egyptian, Plotinus,[1004] with sufficient completeness to be presented to the devout polytheist as a rule of life. In general conception, the new faith did not differ essentially from the scheme advanced by the founder of the Academy, but, with its deficiencies supplied from exotic sources, it was propounded solemnly as a theosophy which revealed the whole purport of human existence. As a practical religion, this revival, Neoplatonism by name, enjoined a purity of life which should free the soul from defilement by contact with the world, and allow it to coalesce with the divine potential whence it had emanated.[1005] The crowning allurement of the system was that this blissful conjunction might be attained by the fervid votary even during life. Those who had subjugated all their natural, and, therefore, evil passions, might rise by contemplation to an ecstatic union with the Deity, the transcendant One; or, to express it irreverently in modern language, might acquire the faculty of passing into a hypnotic trance.[1006] As soon as Plotinus had perfected his invention, he proceeded to Rome (c. 244), with the view of professing his doctrine to the mystically inclined on the most extended theatre in the Empire. Here his success was very considerable, and he gained numerous adherents, especially as he conceded that all forms of Pagan worship availed as a real approach to the Deity and enshrined germs of truth derived from some primitive revelation. He became influential at Court and was about to organize a Utopian community on the lines of Plato’s ideal republic under the auspices of Gallienus when the fall of that Emperor frustrated his design.

Plotinus died in 270, leaving many disciples to continue the work of his school, the foremost of whom was Porphyry, known as a keen assailant of Christianity.[1007] To him succeeded the Syrian, Iamblichus, a contemporary of Constantine, who gave the final form to Neoplatonism and adapted it for widest acceptance. The religion of Plotinus was an ineffable creed which avowedly excluded vulgar participation, and was addressed only to cultured aspirants;[1008] but a descent was made by his successors who, with the object of amplifying their influence, embraced gradually all the crass superstitions of the multitude. A mystical signification was read into the sacred books of the Greeks, as the poems of Orpheus, Homer, and Hesiod may appropriately be termed, by an allegorical interpretation of every phrase or incident in the text. All trivial circumstances or immoral pictures were thus disclosed to be fraught with spiritual or ethical meaning for the pious reader.[1009] The endless procession of invisible beings with which Eastern fancy had peopled space, angels, demons, archons, and demigods, were accepted by the latter school and associated to the theocracy as mediators who could be summoned and suborned to human purposes by magic rites, incantations, and sacrifices.[1010] By the time this stage had been reached, Neoplatonism appeared to be fully equipped for satisfying the occult proclivities of all classes, and asserting its right to become the prevailing religion of the state.

III. The most distinctive and irrepressible theological principle which entered Western civilization from the East, was the dualistic conception of nature inherent in the old Babylonian religions. The seers of that ancient people could not resolve the problem as to the providential government of the world, without postulating a perpetual strife between two opposed powers, who were engaged in determining the course of events. The spectacle of suffering humanity enforced the belief that a potent spirit of evil shared the control of the existing order of things to an equal extent with the benign Deity from whom all blessings flowed. The eastern provinces of the Empire became saturated with these views, and the prime mover in diffusing them was said to be that Simon Magus who, although he makes but a brief and insignificant appearance in Gospel history, occupies a very considerable space in extra-biblical literature.[1011] Under the name of Gnostics, recipients of a special enlightenment or gnosis, his reputed progeny swarmed about the early Christian Church, whose presence seemed to rouse them into vitality; for, in the doctrine of redemption by Jesus, they found, as they imagined, the key to much that was unexplained in their own system.[1012] Diversity in the apprehension of detail was an innate characteristic of the Gnostic brood; whence it followed that they became apparent in small sects only, computed at some scores, and, though numerous, never attained the weight of union as a religious body. Gradually they were dissolved by the preponderance of the Catholic Church, which absorbed their members and proscribed their peculiar tenets.[1013]

There was, however, one form of dualism which arose beyond the borders of the Empire, and, from its centre in Persia, spread with great rapidity eastwards to the frontiers of China, and westwards as far as the Atlantic ocean. This international faith, for such it became in less than a century, was called Manichaeism from its founder Mani, of whom little certain is known; but he was probably a native of Ecbatana, the Median capital.[1014] As the prophet of a new dispensation, Mani belongs to the second class of makers of religion, that is, he did not claim to be himself a god, but only an apostle commissioned by the Deity. His life extended to upwards of sixty years, and he was countenanced by more than one of the Sassanian kings. At length, however, he fell a victim to the jealousy of the Magi, the exponents of the established belief of Zarathushtra, at whose instigation he was crucified and flayed by Bahram I. In the system of Mani the fundamental conception is the antithesis of light and darkness, by which the opposition between good and evil is vividly denoted; and the present world originates in the accident of a war breaking out between the respective powers. Satan, the Prince of Darkness, discovers by chance the kingdom of light, the existence of which was previously unknown to him, and, with his army of demons, makes an incursion into it. The God of Light, sustained by his pure spirits, engages and defeats him, but during the campaign a commingling has occurred of elements of the two realms. The contest now resolves into the efforts of the Deity to regain, and of Satan to retain, the portions of light which were lost in the darkness. The first step is the formation by the former of this world, but the latter creates man as a secure receptacle for the light he had acquired. Hence this creature is animated by two souls, an evil one as well as a soul of light; and Satan enslaves him by exciting his bad passions.[1015] The process of restoring the light goes on continually, and the sun and moon are great reservoirs into which it is poured by the active agents of the superior Deity. The human race is placed in possession of the clue to paradise by having this gnosis imparted to it. A rigid asceticism must be practised according to prescribed rules. There were, however, two ranks of Manichaeans, the Elect and the Auditors. The earnest votaries joined the first, and on them celibacy and a vegetarian diet were imposed. Membership of the second was adapted to the masses, from whom only moderate abstinence was required. They ministered religiously to the Elect, whom they thus enlisted as redeemers on their behalf, so that with the addition of a term of purgatory after death, they also became fitted for paradise. Mani utilized some of the ideas of Christianity in order to connect his religion practically with mankind, but his transferences are rather imitations than acceptances of anything really Christian. Thus he acknowledged a Jesus Christ, who abides in the son, as the “primal man” or first-born of the Deity.[1016] He had visited the earth as a prophet, and from him Mani had received his apostolic mission, whence he usurped the title of the Paraclete, whose advent was promised in the Gospels. He also instructed twelve disciples to preach his doctrine. The success and prevalence of Manichaeism was at one time very great, for it arose as the revivifying force of more than one aspect of dualism in the East and West. It fostered the time-honoured traditions of the inhabitants of the Euphrates valley, and drew to itself the disintegrating coteries of Gnostics within the Roman Empire. A Manichaean popedom was established, which had its seat for several centuries in Babylon. As early as 287 Diocletian denounced the propagation of the religion as a capital offence, on the grounds that the “execrable customs and cruel laws” of the Persians might thereby gain a footing among his “mild and peaceful” subjects.[1017]

From the foregoing summary it will be seen that in the first years of the fourth century polytheism, as resuscitated by Neoplatonism, held the field against its rivals with the support and approval of the government. We cannot attempt here to fathom the motives, so prolific as a literary theme, which induced Constantine first to favour Christianity, then to embrace it for himself and his family, and finally to raise it into the safe position of being the only religion recognized by the state. In the blank outlook of the times some definite belief was a necessity, and, whether from policy or conviction, he steered his course in the direction where the tide seemed to set most strongly. Pure Neoplatonism was congenial only to persons of a meditative temperament; to the sober-minded it was artificial and unconvincing. Its loftier heights were inaccessible to the masses, and in its later development it threatened to make common cause with the jugglers and charlatans who risked a conflict with the law.[1018] Manichaeism had only begun to rear its head, and at the best contained much that was fantastic and incomprehensible to a non-Semitic people.[1019] Christianity was simple, positive, socialistic, a leveller of class distinctions, for the slave as well as for the free man, and absolutely intolerant of every other religion. Its emissaries believed implicitly in their mission, and worked incessantly among the lower stratum of the population, to whom they delivered the message of their Gospel in clear and precise terms. By their vehement assertion there was no escape from, and no alternative to the acceptance of their creed. The Day of Judgment was at hand; at any moment Jesus might return to inaugurate a golden age of one thousand years upon the earth; and all those who had been regenerated by baptism would participate in His glory.[1020] The primitive church was communistic in principle, and exceptional solicitude was shown in the administration of charity to its indigent members. Liberality in this sense was doubtless the means of winning over many converts, for its bounty was not withheld from the poor on account of any difference in religion.[1021]