"Philosophy and Martyrdom Tertullian and Justin Martyr," by Jean-Luc Marion (video).  I was offered this video via email.  In it, Marion presents the case that the distinction of reason vs. faith or philosophy vs. theology is an improper distinction.  The earliest Christian apologists argued philosophically, just as their non-Christian counterparts did.

This distinction is very much questionable.  Until the twelfth century, no Christian thinker has ever called what he is doing "theology."

The word theology began to be imposed only the time of Abelard and Aquinas.  Why?  The word "philosophy" had begun to be used to distinguish from what we now call theology.  This can be tied to the rediscovery of Aristotle, among other reasons.