The events of Hebrew history, and its heroes --Abraham, David, Elijah-- were all familiar to him. The Old Testament was the background of a large portion of the Sermon on the Mount. From Deuteronomy vi. 4, 5, and Leviticus xix. 18 he drew his marvellous epitome of all law and duty. In the wisdom literature, and especially in the book of Proverbs, he found many of those practical truths which he applied to life with new authority and power. From the same storehouse of crystallized experience he derived certain of those figures which he expanded into his inimitable parables; he adopted also, and put to new use, the effective gnomic form of teaching of the wisdom school. As in the mouth of his herald, John the Baptist, the great moral and spiritual truths, first proclaimed by the ancient prophets, live again on the lips of Jesus. At every point in his teachings one recognizes the thought and language of the older Scriptures. At the moments of his greatest temptation and distress, even in the last agony, the words of the ancient law and psalms were on his lips and their consoling and inspiring messages in his mind. [Sidenote: _Attitude of the apostles_] What is so strikingly true of Jesus is equally true of the apostles and disciples who have given us the New Testament books: the atmosphere in which they lived, the thoughts which they thought, and the language in which they spoke, were those of the Old Testament. Not bowing slavishly before it, as did their Jewish contemporaries, but with true reverence, singling out that which was vital and eternal, they made it the basis of their own more personal and perfect message to humanity. But for them, and for the early Church, until at least the middle of the second Christian century, the only scriptures regarded as authoritative were those of the Old Testament. Even then, only gradually, and under the pressure of real needs, were different groups of Christian writings added and ascribed an authority equal to that of the older Scriptures. [Sidenote: _Attitude of the later Church, and especially Puritanism_]