Thus, then, does Mark stand as an historical source. After this we could hardly hope to be much strengthened in our belief in Jesus' historical reality by the other two Synoptics. Of these, Luke's Gospel must have been written, in the early part of the second century, by an unknown Gentile Christian; and Matthew's is not the work of a single author, but was produced--and unmistakably in the interests of the Church--by various hands in the first half of the second century. [392] But now both, as we have said, are based on Mark. And even if in their representations they have attained a certain "peculiar value" which is wanting in Mark--e.g., a greater number of Jesus' parables and words--even if they have embellished the story of his life by the addition of legendary passages (e.g., of the history of the time preceding the Saviour, of many additions to the account of the Passion and Resurrection, &c.), this cannot quite establish the existence of an historical Jesus. It is true that Wernle takes the view that in this respect "old traditions" have been preserved "with wonderful fidelity" by both the Evangelists; but, on the other hand, he concedes as to certain of Luke's accounts that even if he had used old traditions they need not have been as yet written, and certainly they need not have been "historically reliable." It seems rather peculiar when, leaving completely on one side the historical value of the tradition, he emphatically declares that even such a strong interest, as in his opinion the Evangelists had in the shaping and formation of their account, could not in any way set aside "the worth of its rich treasure of parables and stories, through which Jesus himself [!] speaks to us with freshness and originality" (!). He also strangely sums up at the end, "that the peculiar value of both Gospels, in spite of their very mixed nature, has claim enough on our gratitude"(!). [393] This surely is simply to make use of the Gospels' literary or other value in the interest of the belief in their historical credibility.