The article begins with a historical survey of challengers of hypocrisy and inauthentic Christianity throughout church history: Søren Kierkegaard, Bernard de Clairvaux, Girolamo Savonarola, Martin Luther, Jonathan Edwards, and Francis Schaeffer. It continues with two questions about the biblical warrant and feasibility of such warnings. Finally, it concludes with a consideration of two dangers facing the church today: conservatism and escapism in the church. In the end, we can only face up these challenges in the task of apologetics through the power of the gospel.