4. The Jewish God-idea, of course, had to go through many stages of development before it reached the concept of a transcendental and spiritual god. It was necessary first that the Decalogue and the Book of the Covenant prohibit most stringently polytheism and every form of idolatry, and second that a strictly imageless worship impress the people with the idea that Israel’s God was both invisible and incorporeal.(179) Yet a wide step still intervened from that stage to the complete recognition of God as a purely spiritual Being, lacking all qualities perceptible to the senses, and not resembling man in either his inner or his outer nature. Centuries of gradual ripening of thought were still necessary for the growth of this conception. This was rendered still more difficult by the Scriptural references to God in His actions and His revelations, and even in His motives, after a human pattern. Israel’s sages required centuries of effort to remove all anthropomorphic and anthropopathic notions of God, and thus to elevate Him to the highest realm of spirituality.(180) 5. In this process of development two points of view demand consideration. We must not overlook the fact that the perfectly clear distinction which we make between the sensory and the spiritual does not appeal to the child-like mind, which sees it rather as external. What we call transcendent, owing to our comprehension of the immeasurable universe, was formerly conceived only as far remote in space or time. Thus God is spoken of in Scripture as dwelling in heaven and looking down upon the inhabitants of the earth to judge them and to guide them.(181) According to Deuteronomy, God spoke from heaven to the people about Mt. Sinai, while Exodus represents Him as coming down to the mountain from His heavenly heights to proclaim the law amid thunder and lightning.(182) The Babylonian conception of heaven prevailed throughout the Middle Ages and influenced both the mystic lore about the heavenly throne and the philosophic cosmology of the Aristotelians, such as Maimonides. Yet Scripture offers also another view, the concept of God as the One enthroned on high, whom “the heavens and the heaven’s heavens cannot encompass.”(183) The fact is that language still lacked an expression for pure spirit, and the intellect freed itself only gradually from the restrictions of primitive language to attain a purer conception of the divine. Thus we attain deeper insight into the spiritual nature of God when we read the inimitable words of the Psalmist describing His omnipresence,(184) or that other passage: “He that planted the ear, shall He not hear? He that formed the eye, shall He not see? He that chastiseth the nations, shall He not correct, even He that teaches man knowledge?”(185)