One of the most ubiquitous terms in the Qur’an, taqwa, or ‘fear of God’, serves as a major theme and leitmotif of the wider Quranic vision. This study explores, both lexically and semantically, the way in which this term is situated within the Quranic universe of discourse, proposing that by attending to the broader semantic dynamism of the text itself we are in a better position to understand the range and scope of the vision which shaped the Qur’an’s  key thematic structures. Methodologically, the study has made use of a systematic statistical survey of the Quranic lexicon, deriving by way of computer- aided analysis a comprehensive inventory of all morphological derivations of radicals connoting the general idea of ‘fear’, a larger semantic grouping to which the term taqwa belongs. Predicated upon the results of this empirical survey, the study takes as its primary analytic framework the Qur’an’s  inherent intertextual reflexivity  and argues that observable semantic shifts in the rhetoricity of the term taqwa represent circumstantial developments in the text’s basic chronology.