Spinoza's aim in revealing the defectiveness of the Bible was not theological but philosophical. Orthodox Biblical conceptions had in his day, as they still have to a certain extent in ours, a peculiarly sanctified power, because they were institutionalized and made the basis of an authoritative system of conduct. The misbegotten doctrines therefore could not be questioned with impunity, for a criticism of the doctrines on intellectual grounds was invariably construed as an attack upon the vested customs. The misfortunes of history made dissent from palpable absurdities capital heresy. Social and religious bigotry burned scientific men with political ardor. However, although Spinoza suffered in his own person from religious persecution, he never for one moment held as did, for example, Voltaire, that the Church is the wily and unregenerate instrument of vicious priests. On the contrary, Spinoza was quite sure that many of the clergy were among the noblest of men, and that the Church was in large measure a very salutary institution for the masses who cannot learn to govern themselves by force of mind. But Spinoza was unalterably opposed to any encroachment of Church authority upon the just liberties of men. Especially did he object to the Church extending its prohibitive power over men's thinking. It is the business of the Church to inculcate "obedience" in the masses; not to dictate to philosophers what is the truth. The fundamental purpose of Spinoza's attack upon the Bible is to free philosophy from theology; not to destroy the Church but to disestablish it. Many readers of Spinoza conclude that because Spinoza tolerated Church authority in matters of public morality he therefore either did not in his own thought thoroughly adhere to his principles or else he was excessively cautious, even timid, and did not fully or consistently express his mind. No one would deny that there is some accommodation in Spinoza's language. He certainly followed the practical wisdom of the thinkers of his day. Even so, however, Spinoza was by no means as cautious as was Descartes. Anyway, accommodation does not fully account for Spinoza's attitude on this question; in fact, it does not account for any significant feature of it.