October 31, 2017, marks the 500th anniversary of the day recognized as the beginning of the Reformation. In the next few years after that key day, Martin Luther studied Scripture, especially the book of Galatians. As he did, the biblical doctrine of Justification by Grace through Faith Alone would become the central doctrine of the Reformation. 500 years later, the church once again needs a renewal of our understanding of this central doctrine. Starting on October 29, 2017, the Tucson Reformed Baptist church will be starting a study through the Book of Galatians to learn from this great book, and its central doctrine.