38See Robert M. Kingdon, “The Genevan Revolution in Public Worship,” in Princeton Seminary Bulletin 20 (1999): 167. Kingdon states that the essential difference between Calvin’s service and medieval worship was that “above all, they had to deploy a different set of sense. [Protestants] were expected to absorb what is most essential in religion through hearing [the Word] rather than through seeing [the Mass]” (p.180). Listening to a sermon takes far more engagement than watching the performance of the Eucharist.