33. The question of the trustworthiness of the fourth gospel is greatly simplified by the consideration of the one-sidedness of Mark's representation. It is further relieved by the fact that a ministry by Jesus in Jerusalem must have been one of constant self-assertion, for Jerusalem represented at its highest those aspects of thought and practice which were fundamentally opposed to all that Jesus did and taught. Whenever in Galilee, in the ministry pictured by the first three gospels, Jesus came in contact with the spirit and feeling characteristic of Jerusalem, we find him meeting it by unqualified assertion of his own independence and exalted claim to authority, altogether similar to that emphasis of his own significance and importance which is the chief characteristic of his teachings in the fourth gospel. If it be remembered that that gospel was avowedly an argument written to commend to others the reverent conclusion concerning the Lord reached by a disciple whose thought had dwelt for long years on the marvel of that life, and if we recognize that for such an argument the author would select the instances and teachings most telling for his own purpose, and would do this as naturally as the magnet draws to itself iron filings which are mingled with a pile of sand, the exclusively personal character of the teachings of Jesus in this gospel need cause little perplexity. Nor need it seem surprising that the words of Jesus as reported in John share the peculiarities of style which mark the work of the evangelist in the prologue to the gospel and in his epistles. His purpose was not primarily biographical but argumentative, and he has set forth the picture of his Lord as it rose before his own heart, his memory of events being interwoven with contemplation on the significance of that life with which his had been so blessedly associated. In a gospel written avowedly to produce in others a conviction like his own, the evangelist would not have been sensible of any obligation to draw sharp lines between his recollection of his Lord's words and his own contemplations upon them and upon their significance for his life. If these considerations be kept in mind we may accept the uniform tradition of antiquity, confirmed by the plain intimation of the gospel itself, that it is essentially the work of John, the son of Zebedee, written near the close of his life in Ephesus, in the last decade of the first century.