Not only has the narrative become clear and orderly, not only has the wonderful history parted itself into the true and helpful time-divisions so diverse from the confusing chapters, but the places now stand out, and journeys are distinct. Take any diatessaron--that is, any parallel arrangement of the four Gospels--and note the wide blanks in each book, filled out by others, so that between contiguous verses of one Gospel must be inserted whole chapters of another, complete journeys, many deeds and sayings, the location in the meantime greatly changing. A geologist will think of the helpful triumph of taking from the full rock record here to fill out the unconformable strata there, until a geological column is built up. A further inestimable advantage is the appreciation of surroundings. What light is cast, for example, on the story of Lazarus in John by its insertion in Luke! The contact of these parted elements of the gospel story sometimes rouses a current of thrilling thoughts, making a veritable electric battery of the monotessaron. Still another priceless gain is an understanding of proportions. Matthew's parallels, Mark's deeds, Luke's miracles and parables, John's sermons--in reading any of the four Gospels peculiar elements come into prominence, and we are left with no idea of the relative proportion of these elements in the one life. What emphasis did Christ place on the doctrinal, and what on the practical? Just how much of his teaching concerned himself and his character? What space in the New Testament is occupied by miracles? Just what part of Christ's preaching was parabolic? What is the prominence of missionary effort and proselytism? How much is there of consolation, and how much of stern rebuke? What measure of promise? What quantum of theology? What share of ethics? These and scores of other questions which occur at once to every Christian thinker, the monotessaron makes possible of easy and rapid answer. Indeed, almost its chief advantage is the spur it affords to the spirit of investigation. Those who are statistically inclined can even get at precise ratios by the exact process of counting lines. Well, that is my experience of the value of a monotessaron. It has given the life and person of Christ marvelous vividness, setting facts in their due order, location, relations, and proportions, while the facility it affords is constant inspiration to fresh, delightful study. This is the experience of thousands, and yet I am sure that among the readers of this book will be many who are yet unacquainted with this Bible help. Not only every Sunday-school teacher, but every Bible scholar, should own one. The single year in which I wrote this chapter saw the publication, in quick succession, of four of these monotessarons, one the improved edition of an older work. Each of these four has its peculiar features of value, and I have compared them carefully to get at their characteristics.