I imagine not many mainstream pastors would haul off and say this to their congregations on a Sunday morning, but…
“You brood of vipers! Who warned you to flee from the wrath to come? Bear fruits worthy of repentance….
…the folks who listened to this took a special trip to hear it. Like taking a trip to that Really Good Restaurant in New York or Boston where the waitstaff treats you curtly. You take the trip for the experience and then you go home from vacation or your “retreat”.
I bet none of THOSE folks would have wanted to hear something similar in their home congregation, either.
Honestly, I don’t think we’ve (“we”, not “y’all”) changed in 2,000 years.