John MacArthur · October 31 represents a very important day for believers: Reformation Day. This remarkably uncelebrated day marks the anniversary of Martin Luther nailing his Ninety-five Theses to the church door in Wittenberg, Germany. That audacious act by a passionate monk is often recognized as the flashpoint of the Protestant Reformation. The true catalyst of the Reformation was not merely that one act, but an understanding. The doctrine of Sola Scriptura (Scripture alone) was the true cause of the Protestant Reformation. To watch John MacArthur on Why the Reformation Isn't Over, visit https://linktr.ee/gracetoyou.