Lutheran pastors, professors, and students of the Reformation look to Martin Chemnitz for the first and best defense of the Formula of Concord's theology. Just as the Augsburg Confession had its Apology (defense) by Philip Melanchthon, so the Formula of Concord had its famous Apology written by Chemnitz and his associates. The main topics discussed in this first-ever English edition are the person of Christ, the Lord's Supper, and the way in which Lutherans created and upheld their confessional writings. This valuable volume helps to answer questions such as What authority does Luther have for us?, Does the Formula of Concord really agree with the Augsburg Confession?, and What is the proper way to unity?