In our pragmatic, materialistic society, where each of us seeks comfort and “fulfillment” and respect, it is hard to follow a despised, crucified Messiah— unless we fix our eyes on the end. If we do not aim for the new heaven and the new earth, many of our values and decisions in this world will be myopic, unworthy, tarnished, fundamentally wrongheaded. To put the matter bluntly: Can biblical spirituality long survive where Christians are not oriented to the world to come?
–D.A. Carson, Praying with Paul: A Call to Spiritual Reformation (p. 31).