'What must you do if you lack the humility, love, joy, and confidence you need to face the life issues before you? You should not try to move on past the gospel to "more advanced" principles. Rather, you must shake yourself until more of the gospel "coins" drop and more of the fruit of the Spirit comes out. Until you do that, despite your sound doctrine you will be as selfish, scared, oversensitive, insensitive, and undisciplined as everyone else.'
Timothy Keller in John Piper & Justyn Taylor (Ed.), The Supremacy of Christ in a Postmodern World, p. 112.