The Necessity of Reforming the Church
by John Calvin (1509-1564)
Presented to Imperial Diet at Spires, AD 1544,
in the name of all who wish Christ to reign.
At the request of Bucer Calvin utilized the occasion of the fourth Diet of Speyer assembled by Charles V in February, 1544, to address to the Emperor a "Supplicatory Remonstrance" in reference to a General Council of the Church after the manner of the Early Church. It was also a powerful jutification of the Reformation, and it met with considerable success in its impact upon the Diet and in confirming the Emperor in his tolerance toward the movement for reform.