The next great stage in the canonization of the law is recorded in Nehemiah x. Then the representatives of the Jewish community _entered into a solemn obligation and took oath to walk in God's law, which was given by Moses the servant of God, and to observe to do all the commands of Jehovah our Lord and his ordinances and his statutes_ (v. 29.) This action appears to be the historical basis of the fanciful and incredible Jewish traditions concerning the work of the Great Synagogue and the authority of Ezra. The new law thus adopted was evidently the one gradually developed and finally formulated by the Jewish priests in Babylonia. It was accepted, as was the earlier Deuteronomic code, because it met the needs and appealed to the moral and religions sense of those by whom it was adopted. [Sidenote: _Acceptance of the completed Torah_] To set completely aside the Deuteronomic lawbook and the primitive decalogue of Exodus xx.-xxiii., already in force among the Jews of Palestine, was impossible and unnecessary. Hence, as we have noted, it was the task of some editor of the next generation to combine these and the earlier prophetic histories with the late priestly law and its accompanying history. Naturally this whole collection was still called the _Torah_ or _Law_ and was at once accepted as canonical by the Jews. This step was also most natural because their interests all centred about the ritual, and for two centuries the dominant tendency had been to exalt the sanctity of the written law. [Sidenote: _Date of the final canonization of the Law_] It is possible to fix approximately the date of this first edition of the Old Testament writings, since the Samaritans adopted and still retain simply the Pentateuch and an abbreviated edition of Joshua as their scriptures. Although Josephus, following a late Jewish tradition, dates the Samaritan schism at about 330 B.C., the contemporary evidence of Nehemiah xiii. 28 suggests that it was not long after 400. It is therefore safe to conclude that by 350 B.C. the first five books of our Old Testament had not only been singled out of the larger literature of the race, but were regarded as possessing a unique sanctity and authority. [Sidenote: _Principles of canonization_] As the name _Law_ suggests, the chief reason for this was the fact that these five books embodied laws long since accepted as binding. The second reason was probably because they were by current tradition ascribed to Moses. The third, and not the least, was, doubtless, because they met the need felt by the community for a unified and authoritative system of laws and for an authentic record of the earlier history of their race, especially that concerning the origin of their beloved institutions. [Sidenote: _Evidence that the Law was first canonized_]