[23] The most curious instance of the essential identity of the nature deities of the West and East will be found in Mithraism. The worship of Mithras was originally the worship of the sun. It started from India, passed into Persia, thence found its way to Asia Minor, and about 70 B.C. was introduced into Rome, where it became, about A.D. 200, the great rival of Christianity, imitating the sacraments of baptism and holy communion in rites of its own. Mithraism easily combined with the worship of Apollo, or the Sun-God. Apollo, Mithras, and Baal were fundamentally one and the same. Tertullian, Justin Martyr, and Origen call Mithraism a demoniacal imitation of Christianity. See more on this point in the article on Mithras in the _Dictionary of Christian Biography_, vol. iii., p. 925.
(_b_) Our Lord's answer to His Apostles was couched in words suited to develop this practical aspect of His religion. It refused to minister to mere human curiosity, and left men uncertain as to the time of His return, that they might be fruitful workers in the great field of life. And now behold what ill results would have followed had He acted otherwise! The Master in fact says, It is not well for you to know the times or seasons, because such knowledge would strike at the root of practical Christianity. Uncertainty as to the time of the end is the most healthful state for the followers of Christ. Christ holds out the prospect of His own return for a twofold purpose: first, to comfort His people under the daily troubles of life--"Rejoice in the Lord alway: again I will say, Rejoice. Let your forbearance be known unto all men. The Lord is at hand;" "Whatever our hope or joy or crown of glorying, are not even ye, before our Lord Jesus Christ at His coming;" "If we believe that Jesus Christ died and rose again, even so them also that are fallen asleep in Jesus will God bring with Him,"--these and dozens of other passages, which will recur in a moment to every student of St. Paul's writings, prove the power to comfort and sustain exercised by the doctrine of Christ's second coming. But there was another and still more powerful influence exercised by this doctrine. It stirred men up to perpetual watchfulness and untiring care. "Watch, therefore, for ye know neither the day nor the hour;" "Therefore be ye also ready, for in an hour that ye think not the Son of man cometh;" "The night is far spent, the day is at hand; let us therefore cast off the works of darkness, and let us put on the armour of light,"--these and many a similar exhortation of the Master and of his chosen Apostles alike, indicate to us that another great object of this doctrine was to keep Christians perpetually alive with an intense anxiety and a sleepless watchfulness directed towards the person and appearing of Christ. The construction of the gospel narrative shows this.
(_c_) There are in the New Testament, taken as a whole, two contrasted lines of prophecy concerning the Second Coming of Christ. If in one place the Lord Jesus speaks as if the date of His coming were fixed for His own generation and age, "Verily, I say unto you, this generation shall not pass away till all these things shall be fulfilled," in the very same context He indicates that it is only _after a long time_ that the Lord of the servants will return, to take account of their dealings with the property entrusted to them. If St. Paul in one place seems to indicate to the Thessalonians the speedy appearing of Christ and the end of the dispensation, in another epistle he corrects such a misapprehension of his meaning. If the Revelation of St. John in one place represents the awful Figure who moves amid the Churches, watching their works and spying out their secret sins, as saying, "Behold, I come quickly," the same book pictures a long panorama of events, extending over vast spaces of time, destined yet to elapse before the revelation of the city of God and the final triumph of the saints. The doctrine of Christ's second appearing is like many another doctrine in the New Testament. Like the doctrine of God's election, which is undoubtedly there, and yet side by side with election appears as really and truly the doctrine of man's free will; like the doctrine of God's eternal and almighty love, side by side with which appears the existence of a personal devil, and of an abounding iniquity and sorrow which seems to contradict this doctrine; like the doctrine of the Godhead itself, where the Unity of the Divine Nature is most clearly taught, yet side by side therewith appears the manifold personality of Father, Son, and Holy Ghost as existing in that Nature;--so too is it in the case of the doctrine of Christ's Second Coming. We have a twofold antinomy. In one line of prophecy we have depicted the nearness and suddenness of Christ's appearing; in another line we behold that tremendous event thrown into the dim and distant future. And what is the result upon the human mind of such opposite views? It is a healthy, useful, practical result. We are taught the certainty of the event, and the uncertainty of the time of that event; so that hope is stirred, comfort ministered, and watchfulness evoked. We can see this more clearly by imagining the opposite. Suppose Christ had responded to the spirit of the apostolic query, "Dost Thou at this time restore the kingdom to Israel?" and fixed the precise date of His coming? He would in that case have altogether defeated the great end of His own work and labour. Suppose He had fixed it a thousand years from the time of His Ascension. Then indeed the doctrine of Christ's Second Coming would have lost all personal and practical power over the lives of the generation of Christians then living, or who should live during the hundreds of years which were to elapse till the date appointed. The day of their death, the uncertainty of life, these would be the inspiring motives to activity and devotion felt by the early Christians; while, as a matter of fact, St. Paul never appeals to either of them, but ever appeals to the coming of Christ and His appearing to judgment as the motives to Christian zeal and diligence. But a more serious danger in any such prediction lurks behind. What would have been the result of any such precise prophecy upon the minds of the Christians who lived close to the time of its fulfilment? It would have at once defeated the great end of the Christian religion, as we have already defined it. The near approach of the great final catastrophe would have completely paralysed all exertion, and turned the members of Christ's Church into idle, useless, unpractical religionists. We all know how the near approach of any great event, how the presence of any great excitement, hinders life's daily work. A great joy or a great sorrow, either of them is utterly inconsistent with tranquil thought, with steady labour, with persistent and profitable exertions. The expectation of some tremendous change, whether it be for happiness or misery, creates such a flutter in the spirit that steady application is simply out of the question. So would it have been in our supposed case. As the time fixed for the appearance of our Lord drew nigh, all work, business, labour, the manifold engagements of life, the rearing of families, the culture of the ground, the development of trade and commerce, would be considered a grand impertinence, and man's powers and man's life would be prostrated in view of the approaching catastrophe.