The first thing to know about theology is that it operates from the inside; it is inherently a believing endeavor. Sociology of religion, comparative religion, cultural anthropology, history of philosophy–these endeavors focus on believers (and the beliefs they hold) as the object of study. They operate, in other words, by looking from the outside in.
But theology cannot be practiced in that way. Theology is not a study of beliefs but an experience of the One about whom people hold those beliefs. To engage in theology is to have your own beliefs about the divine shaped by knowing God yourself, by partaking in the divine nature yourself. In this way, theology is less something you study, and more something you participate in, something you practice, and perhaps something that–to a degree, by God’s grace–you may attain.
Theology is not an objective discipline, any more than romancing your spouse is an objective discipline. Objectivity seeks to elide the observer/interpreter, such that anyone might–through a scientifically valid method–come to the exact same understanding. This sort of method is entirely appropriate to the natural sciences, in which we are doomed to observe the objects of our study from the outside. Partaking in the nature of, say, a granite boulder is entirely beyond us. The best we can do is subject it to study.
But where the nature of the endeavor is to know another p/Person, we proceed differently. We seek the other person’s self-revelation. We communicate. If we are successful, there is a kind of mutual indwelling (or to use the old word, perichoresis). All of these are inherently relational acts; it matters who the parties are. To elide the observer/interpreter is to miss the whole point.
In hermeneutics texts, much is made of the gap between us and the original author and audience–gaps of time, culture, language, geography, and more. We work diligently to overcome those gaps and try to grasp the situation of the original author and audience in order to better understand the text.
Little is made–at least in the hermeneutics books I was reared on–of the gap between us and the divine Author, although in some respects, that gap is easier to bridge. This side of eternity, Paul is beyond my reach. The Corinthian church was the product of time, place, culture, and circumstances that no longer exist. Through diligent study and imagination, I get as close as I can, but some aspect of a passage may remain forever opaque to me through simple ignorance of an idiom, crucial archaeological fact, or tidbit of cultural knowledge. Many things that were obvious to them are now lost to me in the mists of time. Gary Derickson has given us a window into the viticulture behind John 15, for example. How many other such things are yet to be discovered and articulated?
The divine Author is entirely beyond my reach as well. But I am not beyond His reach, any more than the biblical authors were. And so it is that, unchanged by the passing years, is as present to us now as He was to them then. (More than under the Old Covenant, now that we have the indwelling Spirit.) He offers us the opportunity–if the promises of the sacred text mean anything at all–to know Him directly, in a way that is consonant with, but not limited to, what can be mediated by the Scriptures themselves.
tl;dr: God is real. God is present. God speaks. Here. Now. Yes, even to you. Are you listening?