Fellow Protestant revolutionary Bullinger gives telling testimony:
He sends to the Devil all who do not entirely agree with him. In all his fault-finding there is an immense amount of personal animosity, and very little that is friendly and paternal . . . Too many - are the preachers who have gathered out of Luther's books quite a vocabulary of abuse, which they fire off from their pulpits . . . Through the evil example of such preachers the habit of reviling and slandering is spreading . . . and most clergymen nowadays who wish to appear good 'evangelicals' season their preaching with abuse and calumny. (111;v.3:211)