The first three Gospels are not written in the religious dialect of Mysticism. It is all the more important to notice that the fundamental doctrines on which the system (if we may call it a system) rests, are all found in them. The vision of God is promised in the Sermon on the Mount, and promised only to those who are pure in heart. The indwelling presence of Christ, or of the Holy Spirit, is taught in several places; for instance—"The kingdom of God is within you"; "Where two or three are gathered together in My name, there am I in the midst of them"; "Lo, I am with you alway, even to the end of the world." The unity of Christ and His members is implied by the words, "Inasmuch as ye have done it to one of the least of these My brethren, ye have done it unto Me." Lastly, the great law of the moral world—the law of gain through loss, of life through death—which is the corner-stone of mystical (and, many have said, of Christian) ethics, is found in the Synoptists as well as in St. John. "Whosoever shall seek to gain his life (or soul) shall lose it; but whosoever shall lose his life (or soul) shall preserve it."
The Gospel of St. John—the "spiritual Gospel," as Clement already calls it—is the charter of Christian Mysticism. Indeed, Christian Mysticism, as I understand it, might almost be called Johannine Christianity; if it were not better to say that a Johannine Christianity is the ideal which the Christian mystic sets before himself. For we cannot but feel that there are deeper truths in this wonderful Gospel than have yet become part of the religious consciousness of mankind. Perhaps, as Origen says, no one can fully understand it who has not, like its author, lain upon the breast of Jesus. We are on holy ground when we are dealing with St. John's Gospel, and must step in fear and reverence. But though the breadth and depth and height of those sublime discourses are for those only who can mount up with wings as eagles to the summits of the spiritual life, so simple is the language and so large its scope, that even the wayfaring men, though fools, can hardly altogether err therein.
Let us consider briefly, first, what we learn from this Gospel about the nature of God, and then its teaching upon human salvation.
There are three notable expressions about God the Father in the Gospel and First Epistle of St. John: "God is Love"; "God is Light"; and "God is Spirit." The form of the sentences teaches us that these three qualities belong so intimately to the nature of God that they usher us into His immediate presence. We need not try to get behind them, or to rise above them into some more nebulous region in our search for the Absolute. Love, Light, and Spirit are for us names of God Himself. And observe that St. John does not, in applying these semi-abstract words to God, attenuate in the slightest degree His personality. God is Love, but He also exercises love. "God so loved the world." And He is not only the "white radiance" that "for ever shines"; He can "draw" us to Himself, and "send" His Son to bring us back to Him.
The word "Logos" does not occur in any of the discourses. The identification of Christ with the "Word" or "Reason" of the philosophers is St. John's own. But the statements in the prologue are all confirmed by our Lord's own words as reported by the evangelist. These fall under two heads, those which deal with the relation of Christ to the Father, and those which deal with His relation to the world. The pre-existence of Christ in glory at the right hand of God is proved by several declarations: "What if ye shall see the Son of Man ascending where He was before?" "And now, O Father, glorify Me with Thine own self, with the glory which I had with Thee before the world was." His exaltation above time is shown by the solemn statement, "Before Abraham was, I am." And with regard to the world, we find in St. John the very important doctrine, which has never made its way into popular theology, that the Word is not merely the Instrument in the original creation—"by (or through) Him all things were made,"—but the central Life, the Being in whom life existed and exists as an indestructible attribute, an underived prerogative,[60] the Mind or Wisdom who upholds and animates the universe without being lost in it. This doctrine, which is implied in other parts of St. John, seems to be stated explicitly in the prologue, though the words have been otherwise interpreted. "That which has come into existence," says St. John, "was in Him life" ([Greek: ho gegonen, en autô zôê ên.]) That is to say, the Word is the timeless Life, of which the temporal world is a manifestation. This doctrine was taught by many of the Greek Fathers, as well as by Scotus Erigena and other speculative mystics. Even if, with the school of Antioch and most of the later commentators, we transfer the words [Greek: ho gegonen] to the preceding sentence, the doctrine that Christ is the life as well as the light of the world can be proved from St. John.[61] The world is the poem of the Word to the glory of the Father: in it, and by means of it, He displays in time all the riches which God has eternally put within Him.
In St. John, as in mystical theology generally, the Incarnation, rather than the Cross, is the central fact of Christianity. "The Word was made flesh, and tabernacled among us," is for him the supreme dogma. And it follows necessarily from the Logos doctrine, that the Incarnation, and all that followed it, is regarded primarily as a revelation of life and light and truth. "That eternal life, which was with the Father, has been manifested unto us," is part of the opening sentence of the first Epistle.[62] "This is the message which we have heard of Him and announce unto you, that God is Light, and in Him is no darkness at all." In coming into the world, Christ "came unto His own." He had, in a sense, only to show to them what was there already: Esaias, long before, had "seen His glory, and spoken of Him." The mysterious estrangement, which had laid the world under the dominion of the Prince of darkness, had obscured but not quenched the light which lighteth every man—the inalienable prerogative of all who derive their being from the Sun of Righteousness. This central Light is Christ, and Christ only. He alone is the Way, the Truth, the Life, the Door, the Living Bread, and the True Vine. He is at once the Revealer and the Revealed, the Guide and the Way, the Enlightener and the Light. No man cometh unto the Father but by Him.
The teaching of this Gospel on the office of the Holy Spirit claims special attention in our present inquiry. The revelation of God in Christ was complete: there can be no question that St. John claims for Christianity the position of the one eternally true revelation. But without the gradual illumination of the Spirit it is partly unintelligible and partly unobserved.[63] The purpose of the Incarnation was to reveal God the Father: "He that hath seen Me hath seen the Father." In these momentous words (it has been said) "the idea of God receives an abiding embodiment, and the Father is brought for ever within the reach of intelligent devotion.[64]" The purpose of the mission of the Comforter is to reveal the Son. He takes the place of the ascended Christ on earth as a living and active principle in the hearts of Christians. His office it is to bring to remembrance the teachings of Christ, and to help mankind gradually to understand them. There were also many things, our Lord said, which could not be said at the time to His disciples, who were unable to bear them. These were left to be communicated to future generations by the Holy Spirit. The doctrine of development had never before received so clear an expression; and few could venture to record it so clearly as St. John, who could not be suspected of contemplating a time when the teachings of the human Christ might be superseded.
Let us now turn to the human side of salvation, and trace the upward path of the Christian life as presented to us in this Gospel. First, then, we have the doctrine of the new birth: "Except a man be born anew (or, from above), he cannot see the kingdom of God." This is further explained as a being born "of water and of the Spirit"—words which are probably meant to remind us of the birth of the world-order out of chaos as described in Genesis, and also to suggest the two ideas of purification and life. (Baptism, as a symbol of purification, was, of course, already familiar to those who first heard the words.) Then we have a doctrine of faith which is deeper than that of the Synoptists. The very expression [Greek: pisteuein eis], "to believe on," common in St. John and rare elsewhere, shows that the word is taking a new meaning. Faith, in St. John, is no longer regarded chiefly as a condition of supernatural favours; or, rather, the mountains which it can remove are no material obstructions. It is an act of the whole personality, a self-dedication to Christ. It must precede knowledge: "If any man willeth to do His will, he shall know of the teaching," is the promise. It is the "credo ut intelligam" of later theology. The objection has been raised that St. John's teaching about faith moves in a vicious circle.