In the late 17th century, a movement began in Germany that would shake up an already fragile Lutheran church. Pietism, as the movement came to be known, departed from many of the orthodox practices of the day. An emphasis on morals and individual piety over the Scriptures and sacraments led to a rift in the church that hasn't been fully repaired. But why did the movement start? What did the Pietist leaders hope to accomplish? What is the true essence of Pietism? Robert Koester answers these questions and more in his in-depth study of this impactful theological movement. The author's balanced approach and readable style make this an engaging book from start to finish. From debunking hasty generalizations to offering practical lessons for 21st-century Christians, this is an informative outline on Pietism and the key players behind it. While the movement happened more than three hundred years ago, the spirit of Pietism carries on today in churches nationwide. This book will help you understand the movement so that you're better equipped to preach, teach, and confess Lutheran doctrine in your own community.