Luther hated every one but those who agreed with him, he hated Catholics, hated other Protestant Reformer’s ideas, declared such teachings worthy of hell, hated Anabaptist Protestants, Jews, witches, and finally stooped to having everyone in Saxony forced to attend church and learn Luther’s catechism, having the churches in Saxony examined, and any who didn’t teach Lutheranism were run out of the country or worse – if they kept coming back.
Calvin did the same thing in Geneva, everyone forced to give up Catholicism, forced to attend church (or be fined a day’s wage or worse), heretics and witches forced to recant, be exiled or worse, and in fact, if you disagreed with Calvin on any matter concerning the Bible you were considered suspect and exiled, or worse.
If you doubted his theory of predestination, if you doubted his ideas of the Lord’s supper, if you doubted his interpretation of Jesus’ “descent into hell,” if you doubted that the Song of Solomon was primarily about Christ’s love for “the church,” etc. Calvin and Luther taught and argued vehemently that it was the duty of civil magistrates to enforce Christian beliefs, and people should keep every idle word, idle thought, and doubt to themselves.
A 13 year old girl was beaten in public for saying she wanted to become a Catholic. There was no organ music allowed in Calvin’s Geneva, no singing in harmony, no secular songs allowed. There were a few religious plays and then even they were forbidden. So were many secular books. Geneva was turned into a huge printing press for Calvin’s works to spread them throughout southern France and spread his particular brand of Protestantism there. Beautiful eh?