Well Dr Luther s strong and sturdy belief in a world that includes the Devil dualism is a different thing which except in name apparently did not enter your question were shared by just about anybody at the time period and is shared by all traditional i e orthodox in the sense Chesterton uses the word in the book of the same name Christians at this very moment among whom I may include my unworthy person What happened in the witch persecutions was first a downfall of reasonable trial for the charge of having used witchcraft e g a spell was first of all just that a charge second a mass hysteria and then third perhaps also something about actually wrong beliefs concerning the witchcraft which I lack both the knowledge and the place here to go into detail Catholic