Mohammed, when founding his new religion, acknowledged, it is true, the books of the former religions, but for his own believers the unique authority is the Koran, a book which originated within a single generation and therefore is pervaded by one uniform spirit. Christianity adhered to a Bible whose larger part originated in a period much anterior to its own and in a religion inferior to Christianity. The Bible covers a period of over a thousand years. What a difference in civilisation between the nomadic life of the patriarchs and the time of Jesus! What a difference in spirit between the sons of Jacob killing the whole population of Sichem in order to avenge their sister and Jesus' parable of the good Samaritan! or between the prophet Elijah killing four hundred and fifty prophets of Baal and Jesus preaching the love of one's enemies! In fact, it was possible to overcome this difference only in an age which did not read the Bible with historical notions. Even so, the juxtaposition caused much difficulty. We shall see the problem of the Law troubling the church through all the centuries. We shall find the notions of sacrifice and priesthood adapted to Christian institutions. Looking at Charlemagne or Calvin, we realise that the Old Testament is ever introducing its views into Christian minds, as authoritative as any word of the gospel.

Now, at the beginning the influence was rather the other way; the Old Testament was to be interpreted in the light of the New. And, in truth, much light came from the life of Jesus to the history of the ancient people and to the prophecies. We do not wonder that Christian minds were excited by all this fresh illumination, and we must not wonder that sometimes they remodelled the tradition of the life of Christ to accord with the Old Testament.

The harmony between the two Testaments soon became a leading idea in Christian doctrine. Some heretics, indeed, would not accept the Old Testament. Marcion maintained that it came from an inferior god, while the supreme God, the father of our Lord Jesus Christ, had revealed himself only through his Son. He found a great many contrasts between the Old and the New Testament, and this criticism was supported by pagan philosophers, as, for example, Porphyry. The church, therefore, was most anxious to establish the harmony of the Testaments by any means at its command. Taste varies from century to century; the minute parallelism constructed by some early Christian writers, and evidently much admired by their contemporaries, seems to us rather ridiculous and fanciful. On the other hand, the church was right in maintaining the harmony. The New Testament needs to be explained from the Old Testament; it is open to much misunderstanding when taken apart. There was almost no sense for historical development at that time; the criticism of Ptolemæus, in his famous letter to Flora, where he speaks of several strata of revelation running through the Old and the New Testament, is an exceptional one. For most of the faithful the Christian doctrine was directly looked for and found in the Old Testament; the gospel was contained in every one of its books, from Genesis to Malachi. Unity was conceived as uniformity.

This was the system which appealed most to the average Christian mind. And the Bible was open to all Christians, as Harnack has brilliantly demonstrated in a recent publication. The ancient church laid stress upon this publicity and never tried to withdraw the Bible from the people. There was no hidden mystery regarding the Bible. On the contrary, all members of the church were anxiously urged to make themselves as familiar with the Bible as possible. They were supposed to have copies of their own and to read them privately as well as in the congregation. Even when the struggles about the right doctrine began and the heretics sometimes held to the Bible as their champion against the doctrine of the church, the church did not remove the Bible from public discussion. The ecclesiastical party maintained that the Bible was always in favour of the true doctrine; one needs but to know how to read it. Tertullian, it is true, once in the heat of controversy declared that it was no use arguing against heretics from the Bible, but he did it, nevertheless, and so did the other fathers.

The Bible proved its spiritual value to the experience of every reader. A man familiar with the Psalms has a treasure which cannot be lost; in any situation he will find what is suitable for his needs. If one looks for examples of faith, the author of the epistle to the Hebrews in his eleventh chapter gives a splendid model for finding heroes of faith all through the Bible. The book of Genesis, especially its first chapters, was of particular interest for most of the readers on account of the sublime description there given of the beginnings of mankind. The creation story in Genesis implies much more than even the finest of all Greek myths, namely, the myth in Plato's Timæus, with which it was compared by the emperor Julian. The mighty words, "In the beginning God created heaven and earth," proved to be the one true answer to all the cosmological questions of Greek philosophy, and besides there was ample room for introducing whatever was wanted—such as the creation and the fall of the angels—if only one knew how to read between the lines.

In an old Christian book dealing with church regulations and the rules for individual Christian life we find the following admonition to use no other book at all except the Bible, because, as the author says, the Bible contains literature of every kind. The passage runs:[1]

The Bible, in fact, pervaded the whole life of a Christian. It was the Bible, its history, its commandments, that he was taught as a child in his parents' home. When the girls gathered in the women's hall to spin, they would sing and talk about God's revelations more eagerly than even Sappho had praised her luxurious love—according to an expression used by Tatian in his Apology. The prayers, private as well as ecclesiastical, all echoed Biblical phrases, and even at burials the Christians sang joyful psalms.

So the Bible became familiar to the Christians of that time. We are astonished to find how well