The relationship between reason and revelation, one of the most important issues in Islam, has been debated for centuries. This book focuses on three Islamic scholars who examined this relationship and especially the issue of god's existence in great depth: al-Maturidi, who is affiliated with the Hanafi theological tradition; al-Qadi Abd al-Jabbar, who is affiliated with the Mu'tazila theological tradition; and Averröes, who is one the biggest names in the Islamic philosophy.