"We study the Bible because it is the whole counsel of God."
How strange is it that the Christian spends his life reading the same book over and over? The books we own are largely one-and-done experiences (if you ever even make it to "one," that is), but this isn't the case with the Bible. We continue to read it, study it, meditate upon it, and share it with others as though we'll never finish it -- even when we have read it through many times.
God's revelation possesses the amazing quality of inexhaustibility. It's simply impossible for any of us to comprehensively glean everything from the Bible. There are experts on Shakespeare, who essentially know everything there is to know about the man and his work. The same goes for Homer, Twain, and Dr. Seuss. But that kind of expert will never exist with Scripture. The kind of mastery that may exist over a fellow creature's corpus could never exist over the Creator's corpus.