The present age is supremely interested in origins. Not until we have traced the genesis and earliest unfolding of an institution or an idea or a literature do we feel that we really understand and appreciate it. Familiarity with that which is noble breeds not contempt but reverence, and intelligent devotion. Acquaintance with the origin and history of a book is essential to its true interpretation. Therefore it is fortunate that modern discovery and research have thrown so much light upon the origin of both the Old and the New Testaments. [Sidenote: _The growing recognition that the natural is divine_] Equally fortunate is it that we are also learning to appreciate the sublimity and divinity of the natural. The universe and organic life are no less wonderful and awe-inspiring because, distinguishing some of the natural laws that govern their evolution, we have abandoned the grotesque theories held by primitive men. Similarly we do not to-day demand, as did our forefathers, a supernatural origin for our sacred books before we are ready to revere and obey their commands. With greater insight we now can heartily sing, "God moves in a natural way his wonders to perform." Our ability to trace the historical influences through which he brought into being and shaped the two Testaments and gave them their present position in the life of humanity does not in a thoughtful mind obscure, but rather reveals the more clearly, their divine origin and authority. [Sidenote: _Value of the comparative study of the origin of both Testaments_] Through contemporary writings and the results of modern biblical research it is possible to study definitely the origin of the various New Testament books and to follow the different stages in their growth into a canon. This familiar chapter in the history of the Bible is richly suggestive, because of the clear light which it sheds upon the more complex and obscure genesis and later development of the Old Testament. It will be profitable, therefore, to review it in outline, not only because of its own importance, but also as an introduction to the study of the influences that produced the older Scriptures; for almost every fact that will be noted in connection with the origin and literary history of the New has its close analogy in the growth of the Old Testament. [Sidenote: _The threefold grouping of the New Testament books_] We find that as they are at present arranged, the books of the New Testament are divided into three distinct classes. The first group includes the historical books: the Gospels and Acts; the second, the Epistles--the longer, like the letters to the Romans and Corinthians, being placed first and the shorter at the end; while the third group contains but one book, known as the Apocalypse or Revelation. The general arrangement is clearly according to subject-matter, not according to date of authorship; the order of the groups represent different stages in the process of canonization.