What hath Jerusalem to do with Athens? Or what hath faith to do with reason? Drs. William Lane Craig and Alex Rosenberg debate this all important and pervasive question concerning the reasonableness of faith in God. The nature of the question in this debate is no mere academic matter. The question of God is the most important question. One’s answer to it will impact nearly all other beliefs one holds from common notions of morality to politics and from our interest and investigation of our world to what we take to be our purpose(s) in life. Is “faith” foolish? By this, should it be understood to be blind? Or is it reasonable and, if so, by what measure and to whom is it foolishness? For many, Mark Twain is right on the mark when he said that “Faith is believing something you know ain’t true.” Yet the great thinkers of Judaism and Christianity like Philo, Moses Maimonides, Thomas Aquinas, and John Calvin considered faith to be an extraordinarily important virtue (moral and/or intellectual)! Indeed, it is not only the condition by which salvation is appropriated in these Abrahamic faith traditions (which are taken by insiders to actually be knowledge traditions), but it is the basis for movements from Mother Teresa’s compassion and our concern for the poor to Isaac Newton’s inspiration in science in light of God’s creation of the world and man being made in God’s image. Is faith in God reasonable? Ought we to have faith in God? Captured February 1, 2013 on the campus of Purdue University in West Lafayette, IN.