Thereupon he inquired of a Mahometan theologian as to the basis of the faith of Islam. The Moslem believe, as he affirmed, in the unity and eternity of God, and in the _creatio ex nihilo_; but reject anthropomorphic conceptions. Mahomet was the last and most important among the prophets, who summoned all people to the faith, and promised to the faithful a paradise with all the delights of eating, drinking, and voluptuous love, but to the infidels, the eternal fire of damnation. The truth of Islam depends upon the fact that no man is capable of producing so remarkable a book as the Koran, or even a single one of its Suras. To him also the king replied that the fact of the intimate intercourse of God with mortals must rest upon undeniable proofs, which the internal evidence for the divine origin of the Koran does not afford, for even if its diction is able to convince an Arab, it has no power over those who are unacquainted with Arabic. As both the Christian and the Moslem had referred their religions to Judaism in order to verify the historic basis of each, the truth-seeking king at length determined to overcome his prejudice against Judaism, and to make inquiries of a Jewish sage. The latter made the following statement of the tenets of his creed, in reply to the request of the king: "The Jews believe in the God of their ancestors, who delivered the Israelites from Egypt, performed miracles for their sake, led them into the Holy Land, and raised up prophets in their midst--in short, in all that is taught in the Holy Scriptures." Thereupon the king of the Chazars replied, "I was right, then, in not asking of the Jews, because their wretched, low condition has destroyed every reasonable idea in them. You, O Jew, should have premised that you believe in the Creator and Ruler of the world, instead of giving me so dry and unattractive a mass of facts, which are of significance only to you." The Jewish sage replied: "This notion that God is the Creator and Ruler of the universe requires a lengthy demonstration, and the philosophers have different opinions on the matter. The belief, however, that God performed miracles for us Israelites demands no proof, as it depends upon the evidence of undoubted eye-witnesses." Starting from this point, the religious philosopher, Jehuda Halevi, has an easy task to unfold proofs of the truth and divine character of Judaism. Philosophy discards God and religion entirely, not knowing what place to assign to them in the world. Christianity and Islam turn their backs on reason, for they find reason in opposition to the cardinal doctrines of their religions. Judaism, on the contrary, starts from a statement of observed facts, which reason cannot possibly explain away. It is quite compatible with reason, but assigns to reason its limits, and does not accept the conclusions of reason, often degenerating into sophistry, when certainty can be attained in another way.