Os Guinness, No God But God:
The overwhelming majority of Americans, more than 85%, identify themselves as Christians. But if the statistical indicators of faith are up, the social influence is down, and the reasons are becoming plain. There has been a carelessness about Christian orthodoxy, a corruption of Christian obedience, a vacuum of Christian leadership and a disarray among many of the public initiatives in which Christians have recently placed their confidence. Much of the public face of American Christianity is a stunning testament to the power of religion without God.
Words of Grace 