There are many different reasons why the Bible has this joy-producing effect. I don’t want to minimize this diversity or belittle the range of benefits that the Bible has in our lives – more than any of us realizes. But I want to stress that ultimately, in and through all its benefits, the Bible leads us to superior and lasting joy because it leads us to Christ, especially to see his glory and enjoy his fellowship. All the varied benefits are beneficial finally because they show us and bring us more of Christ to enjoy.
– Piper, John; When I Don’t Desire God: How to Fight for Joy; Crossway; Wheaton, Ill.; copyright 2004; p. 97