This study considers the notion of divine simplicity, the idea that God is not a composite of more basic features, and the criticisms by al-Ghazālī (d. 1111) and Alvin Plantinga of that doctrine. What is shown is that most of the argumentation against divine simplicity frequently credited to Plantinga had been nearly perfectly anticipated by al-Ghazālī. Moreover, in responding to a stronger form of divine simplicity, which Avicenna (d. 1037) had presented, than the Thomistic version that Plantinga attacks, Ghazālī develops ‘new’ arguments and moves that are still valuable and informative to the discussion of divine simplicity today.

This article investigates Maimonides’s ethos of disclosing “secrets” and explores its Islamic origins, focusing on sources neglected by earlier scholarship concerning the Guide of the Perplexed. I turn from the prevalent method by which the Guide has been studied for decades, namely, as a work at the core of which lie strategies and an ethos of concealment. In lieu of the conventional method, I go in a very different direction by inquiring into the modes that Maimonides used in fashioning his Guide as a work that involves a self-proclaimed exceptional act of revelation of secrets and a breach of the boundaries of concealment. The resulting textual investigation demonstrates that clusters of motifs presented in these sources, as well as structures of arguments, were retained in their cultural migration. This exploration allows me to illuminate new aspects of the question of the genre of Maimonides’ Guide, its sources, and its author’s intertextual art of writing.