 Storch had made several trips to Bohemia in the line of business, and there had come under the influence of the Taborites of Zatec (Saatz).In Zwickau he conducted ‘corner sermons’ in the houses of other weavers.The town chronicler Peter Schumann thought of Storch as ‘someone with a profound knowledge of Scripture and expert in the things of the Spirit’ 

When the radical reformer Thomas Müntzer was appointed to preach at St Katharine's Church, in October 1520, after a short period at the neighbouring St Mary's, he and Storch began to work together.