"[O]ften there are spiritual reasons why a sermon doesn’t produce change. But there may also be practical reasons why a given sermon is ineffective."

Preaching

“Here are seven types of sermons that can render a preacher’s labors ineffective.” - TGC

Discussion

Whoever restrains his words has knowledge, and he who has a cool spirit is a man of understanding.

(ESV, Proverbs 17:27)