“Thy word (or: essence) is true from the beginning”; thus reads the Psalmist's passage, oft quoted in kabbalistic literature (Psalm 119: 160). According to the originally conceived Judaistic meaning, truth was the word of God which was audible both acoustically and linguistically. Under the system of the synagogue, revelation is an acoustic process, not a visual one; or revelation at least ensues from an area which is metaphysically associated with the acoustic and the perceptible (in a sensual context). This is repeatedly emphasised with reference to the words of the Torah (Deuteronomy 4: 12): “Ye heard the voice of the words, but saw no similitude; only ye heard a voice.” What precisely we are to understand by this voice and what is uttered through it is the very question which the various currents of Judaistic religious thought have constantly posed themselves. The indissoluble link between the idea of the revealed truth and the notion of language—is as much, that is, as the word of God makes itself heard through the medium of human language, if, otherwise, human experience can reach the knowledge of such a word at all—is presumably one of the most important, if not the most important, legacies bequeathed by Judaism to the history of religions.