The discipline of comparative theology is steadily growing and diversifying, beyond its origin within Christian, and predominantly Roman Catholic theological circles. However, practitioners of comparative theology are now increasingly Christians of other denomination, and those in other non-Christian religious traditions. As scholars of another religious tradition, comparative theologians are open to recognizing other religions as possible sources of truth and revelation, that might inform and enhance truth through theological reflection. The discipline has developed a diversity of approaches and methods, while leading by its very nature to wide theological diversity.
See also Francis X. Clooney, S.J., “The Emerging Field of Comparative Theology: A Bibliographical Review (1989-95),” Theological Studies 56.3 (September, 1995): 521–50.