1. It is very difficult to give an exact definition of Judaism because of its peculiarly complex character.(8) It combines two widely differing elements, and when they are brought out separately, the aspect of the whole is not taken sufficiently into account. Religion and race form an inseparable whole in Judaism. The Jewish people stand in the same relation to Judaism as the _body_ to the _soul_. The national or racial body of Judaism consists of the remnant of the tribe of Judah which succeeded in establishing a new commonwealth in Judæa in place of the ancient Israelitish kingdom, and which survived the downfall of state and temple to continue its existence as a separate people during a dispersion over the globe for thousands of years, forming ever a cosmopolitan element among all the nations in whose lands it dwelt. Judaism, on the other hand, is the religious system itself, the vital element which united the Jewish people, preserving it and regenerating it ever anew. It is the spirit which endowed the handful of Jews with a power of resistance and a fervor of faith unparalleled in history, enabling them to persevere in the mighty contest with heathenism and Christianity. It made of them a nation of martyrs and thinkers, suffering and struggling for the cause of truth and justice, yet forming, consciously or unconsciously, a potent factor in all the great intellectual movements which are ultimately to win the entire gentile world for the purest and loftiest truths concerning God and man. 2. Judaism, accordingly, does not denote the Jewish nationality, with its political and cultural achievements and aspirations, as those who have lost faith in the religious mission of Israel would have it. On the other hand, it is not a nomistic or legalistic religion confined to the Jewish people, as is maintained by Christian writers, who, lacking a full appreciation of its lofty world-wide purpose and its cosmopolitan and humanitarian character, claim that it has surrendered its universal prophetic truths to Christianity. Nor should it be presented as a religion of pure _Theism_, aiming to unite all believers in one God into a Church Universal, of which certain visionaries dream. Judaism is nothing less than a message concerning the _One and holy God_ and _one, undivided humanity_ with a world-uniting _Messianic goal_, a message intrusted by divine revelation to the Jewish people. Thus Israel is its prophetic harbinger and priestly guardian, its witness and defender throughout the ages, who is never to falter in the task of upholding and unfolding its truths until they have become the possession of the whole human race.