Might you hazard a guess at what I have in mind by this expression: “preacher tone”?
If you reckoned on something like contrived showiness, an overly-stilted formality, an exaggerated intonation, all delivered in some strange rhythm and pattern, then you’re right on target.
I’m unsure of the history of this phenomenon, but I’m quite sure that the sooner we preachers get over it, the better. Where have we gotten this peculiar idea that our preaching voice should be, must be, something quite other than and decidedly odder than our everyday voice? Has tradition bequeathed this to us? Has the cult of personality in American religion helped establish it? Is there some element of idolatrous worship involved in sustaining its artificial life? These are painful but pivotal questions.