This book explores the philosophical issues arising from the distinctively Christian doctrines of the atonement, incarnation, and Trinity. To many philosophers and theologians, these doctrines raise considerable philosophical quandaries. In this volume, C. Stephen Layman explores such questions as: Why do these doctrines matter? Do they make sense? Do the historically influential theories about them hold up under scrutiny? To what extent do recent contributions by philosophers (e.g., Richard Swinburne, Thomas V. Morris, Stephen T. Davis, Brian Leftow, and Peter van Inwagen) shed light on these doctrines? This philosophical investigation illuminates how religious questions can be addressed with philosophical seriousness.