This book in the Westminster Bible Companion series explores some of Paul's most central letters, including his earliest letters (those to the Thessalonians), his friendliest letter (Philippians), his most personal letter (Philemon), and one of his most sustained autobiographical sketches (Phil 3:3-8). Frederick W. Weidmann observes the changes and developments in Paul's thought and practice in order to help pastors negotiate the distinction between their calling and self-identity.