A forward-looking introduction to the philosophy of religion by examining the relationship between reason and faith with a critical-adaptive approach in the opinions of Alvin Plantinga’s and Morteza Motahari’s.

Philosophy of religion is a science that examines various issues of religion. Until now, the future of religion, as a new issue in this knowledge, has not been given much attention. On the other hand, investigating this new field (the future of religion) is an interdisciplinary study between the philosophy of religion and futurism. The main problem of this research is that the philosophy of religion in the eyes of two Islamic and Western thinkers, according to their view on the relationship between reason and faith, how can it answer the basic questions of religion in the future, for this purpose, a comparative-critical view between the view of Motahari’s and We took Plantinga’s. The research method is valid by referring to his works and scientific and research sources. Then, with the method of document analysis, due to its focus on relationships and analysis of causes, we rationally adapt Plantinga's and Motahari's views and criticize them. The results of this research show that both thinkers have weaknesses in their thought system and we have shown that there are already serious questions about the criterion of the authenticity of religion and there will be more in the future. that the solution depends on: 1- raising basic issues and trying to answer them, 2- reasonableness of belief, 3- moving towards dialogic theology, and 4- giving authenticity to the knowing subject; is.