The Relationship Between Theology and Philosophy: Any Good Books?

As stated in an earlier post, I am currently reading K. Scott Oliphant’s book Reasons {for Faith}.  Based on a preliminary scan of the book, I thought Oliphant was going to deal with what the relationship of philosophy is to theology: what the essence of the relationship is, how it is played out, etc.  Unfortunately, as I get deeper into the book, the more I realize that the book is more of Oliphant’s working out of the philosphy of religion – how the Christian can predicate things to God (His goodness, etc.), for instance.  Oliphant deals very little with the actual relationship between theology and philosophy.

As such, what books are out there that deals with the essence of the relationship between theology and philosophy?  Not so much with the application of it, but what the relationship entails, etc.  Hope that is clear.