Calls all believers to do apologetics — to apply biblical truth to contemporary concerns. An popular-level introduction to presuppositional apologetics and its biblical underpinnings. "Many think that we should leave our Bibles at home when we engage in apologetics, that we should reason with unbelievers only on the basis of "common ground." Scott Oliphint, to the contrary, rightly emphasizes that the Christian can never set his Bible aside, for Scripture sets the standards for everything we do, including apologetics."