There was not a Reformer of any prominence who did not stain his hands with the blood of his Baptist brethren; Luther, Melancthon, Zwingli, Bucer, Bullinger, Calvin, Knox, Cramner, Latimer, Ridley, and many others, who endorsed these cruelties and in the face of whose opposition they would not have been committed. Some of these in turn were burned at the stake themselves, in the carrying out by the Romanists against them of the same line of argument which themselves employed against the Baptists. When defending themselves they claimed the rights of conscience and denied the right of others to persecute, but when opposing Baptists, urged the necessity of the extinction of heresy even by putting heretics to death. They could not see that they themselves were also heretics, and that others had just as good a right to differ from them as they had to differ from the Catholics.
Mosher, R.C. The Baptist in History: Five Lectures. Albert Lea: Simonson & Whitcomb, Printers. 1900: 100