In the minds of those who coined it, the phrase semper reformanda emblematized the conviction that the church must continually reexamine itself in light of Scripture in order to maintain (and where necessary, recover) its purity of belief and practice. The Reformers themselves, of course, were mindful of the fact that they, like popes and councils, could err. Indeed they (like popes and councils) often contradicted one another at points and openly welcomed correction, so long as it came plainly reasoned from Scripture. They recognized that their newfound biblical re-readings were an ongoing work in-progress, and that further progress toward truth could only come via close and repeated inductive examination of Scripture. They called their followers to be “Bereans” with them (Acts 17:11). This humble approach was beautifully captured on April 18, 1521 at the Diet of Worms, where Luther’s corpus—indeed his very life—was on the line.