 Next to Augustine, Al-Ghazali (1085-1111) plays a major role in re-conceiving the questions relevant to skepticism (Menn 2003, Kukkonen 2009). In The Rescuer From Error, Al-Ghazali literally describes God as the rescuer from error (in Khalidi 2005). Like Augustine before and Descartes after him, Al-Ghazali moves through different cognitive faculties. Do the senses or reason allow us to gain knowledge? These questions are framed by the quest for knowledge of God. While Augustine thinks that knowledge of God comes through a combination of seeking God on the one hand and God’s grace on the other, Al-Ghazali thinks it comes through spiritual exercises. However, once confidence in God is secured, trust in the more familiar ways of gaining knowledge—sense perception, rational reasoning, and so on—is restored (for a detailed treatment of skepticism in Classical Islam, cf. Heck 2014).