With degrees in philosophy, theology, and chemistry, I have taught theology and philosophy at several schools throughout the U.S. I have authored or co-authored several dozen books including Kingdom Triangle, Philosophical Foundations for a Christian Worldview; Christianity and the Nature of Science; Scaling the Secular City; Does God Exist?; Immortality: The Other Side of Death; and The Life and Death Debate: Moral Issues of Our Times. I am a co-editor of Christian Perspectives on Being Human and Jesus Under Fire: Modern Scholarship Reinvents the Historical Jesus. My academic work appears in journals and periodicals such as Christianity Today, Philosophia Christi, Journal of the Evangelical Theological Society, Philosophy and Phenomenological Research, and The American Philosophical Quarterly. I served with Campus Crusade for 10 years, planted two churches, and I have spoken on over 200 college campuses. Presently, my wife and I attend the Anaheim Vineyard Christian Fellowship.