Building on the great Reformed theologians past and present, including John Calvin, Abraham Kuyper, Herman Bavinck, Benjamin B. Warfield, Geerhardus Vos, and C. W. Hodge, Van Til began to construct a truly biblical apologetic for the twentieth century. “Apologetics,” as he puts it in several places, “is the vindication of the Christian philosophy of life against the various forms of the non-Christian philosophy of life.”