This is an outstanding article that deserves to be echoed in analyses not only of Bach's classic Lutheran-infused music but also other composers of the era and afterwards whose hymns and longer works still inspire. The Church has a deep repository of theologically rich music that is seldom explained to the laity, only presented. In an era devoted to contemporary "christian" music, our living heritage stands in stark and refreshing contrast. Bravo and we look forward eagerly to more like this.