T H I N K I N G G O D A B O U T Fi r s t S t e p s i n P h i l o s o p h y Gregory E. Ganssle InterVarsity Press P.O. Box 1400, Downers Grove, IL 60515-1426 ivpress.com [email protected] ©2004 by Gregory E. Ganssle All rights reserved. No part of this book may be reproduced in any form without written permission from InterVarsity Press. InterVarsity Press® is the book-publishing division of InterVarsity Christian Fellowship/USA®, a movement of students and faculty active on campus at hundreds of universities, colleges and schools of nursing in the United States of America, and a member movement of the International Fellowship of Evangelical Students. For information about local and regional activities, visit intervarsity.org. Design: Cindy Kiple Images: Helle Bro Clemmensen/iStockphoto ISBN 978-0-8308-7748-5 (digital) ISBN 978-0-8308-2784-8 (print) For David, Nicholas and Elizabeth, who bring joy and laughter to our lives CONTENTS Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . 9 PART ONE: INTRODUCTION 1 Why Bother Thinking About God? . . . . . . . . . . . . . 13 2 What Is Philosophy? . . . . . . . . . . . . . . . . . . . . . 17 3 You Cannot Prove God’s Existence . . . . . . . . . . . . 25 4 What About Faith? . . . . . . . . . . . . . . . . . . . . . . 28 5 Can We Be Neutral? . . . . . . . . . . . . . . . . . . . . . 33 6 Where Do We Begin?. . . . . . . . . . . . . . . . . . . . . 39 PART TWO: REASONS TO BELIEVE IN GOD 7 Starting at the Beginning: Why Is There Anything at All? . . . 43 8 Starting at the Beginning: Must the Universe Have a Cause? . . 52 9 Starting at the Beginning: Must the First Cause Be God?. . . . 59 10 Looking at the Details: Design and Designers. . . . . . . . . 66 11 Looking at the Details: Darwin and Design. . . . . . . . . . 73 12 Looking at the Details: Fine-Tuning and Design . . . . . . . 77 13 Looking at the Details: Many Worlds and Small Chances . . . 81 14 Looking in the Mirror: Moral Reality . . . . . . . . . . . . . 86 15 Looking in the Mirror: Moral Facts Point to God. . . . . . . . 97 16 Reasons to Believe: The Cumulative Case . . . . . . . . . . . 104 PART THREE: GOD AND EVIL 17 The Square Circle Objection. . . . . . . . . . . . . . . . . 109 18 God and Evil Reconciled. . . . . . . . . . . . . . . . . . . 115 19 Reasons God Could Have to Allow Evil . . . . . . . . . . 122 20 Freedom and Determinism: A Chapter You Might Want to Skip . . . . . . . . . . . . . . . . 130 21 The Unicorn Objection. . . . . . . . . . . . . . . . . . . . 138 22 Is There an Elephant in the Room? . . . . . . . . . . . . . 143 PART FOUR: WHAT IS GOD LIKE? 23 Beginning to Think About What God Is Like . . . . . . . 153 24 What Can God Do?. . . . . . . . . . . . . . . . . . . . . . 156 25 What Can God Know? . . . . . . . . . . . . . . . . . . . . 166 26 Can God Know the Future? . . . . . . . . . . . . . . . . . 175 27 Does God Communicate? . . . . . . . . . . . . . . . . . . 178 Suggestions for Further Reading . . . . . . . . . . . . . . . . . . 182 Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185 Praise for Thinking About G od . . . . . . . . . . . . . . . . 188 About the Author. . . . . . . . . . . . . . . . . . . . . . . 190 More Titles from InterVarsity Press . . . . . . . . . . . . . . 191 Academic Textbook Selector . . . . . . . . . . . . . . . . . 192 ACKNOWLEDGMENTS I t is a privilege to thank the many people who helped this project along. First of all, I want to thank the students in my philosophy class at Christian Heritage School. Over the past several years, they have taught me how to think more clearly in order to communicate compli- cated arguments in the language of actual human beings. Much of this book was field tested there. David Fullerton, in particular, has been a big help and encouragement. I have not lost hope that he will eventu- ally switch from physics to philosophy. InterVarsity Press provided two anonymous readers who each gave me detailed comments on the text. I am deeply indebted to them for their careful criticisms. This book is much better because of their efforts. Gary Deddo, my editor at InterVarsity Press, has been quite helpful. I am grateful to him for seeing the merit in this project, for then seeing it through to completion and, most of all, for his friendship. I also want to thank Oxford University Press for permission to quote from The Oxford Dictionary of Philosophy by Simon Blackburn in chapter thirteen. Parts of chapter four come from my paper, “Copernicus, Christology and Hell: Faith Seeking Understanding,” which was published in the journal Philosophia Christi (vol. 20, no.2 [1997]: 1-13). I thank the editor for permission to reuse some of that material. Finally, I am delighted to thank my family. My wife, Jeanie, is al- ways great fun. Her support, love and friendship are my greatest trea- 10 THINKING ABOUT GOD sures. Nothing in my life would be what it is without her. Our chil- dren, David, Nick and Elizabeth, had to bear up under many dinner conversations about the puzzles in this book. We laughed a lot. It gives me great pleasure to dedicate this book to them.