W. Waite Willis, Jr. demonstrates the apologetic usefulness of the Christsan doctrine of the Trinity for responding to the challenges of modern atheism as represetned by Feuerbach, Camus, Marx, Adorno, and Horkheimer. Utilizing materials from Karl Barth and Jürgen Moltmann, Willis demonstrates how Trinitarian theology is iconoclastic towards either theism or atheism. A Trinitarian conception of God, Willis argues, signifies both God's openness and God's relevance to the world.