There is a kind of sermon that does everything technically right and still lands like an informational briefing.
The text is handled carefully. The structure holds. The application is specific, the gospel is clear, the hard verse is not dodged. Ten weeks of this series would score it well. And the congregation files out having learned true things about God from a man who did not appear to be affected by the glory of Him.
The problem: the preacher explained glory without ever seeming to experience it.
John Piper's phrase for the alternative is expository exultation. Not exposition plus enthusiasm, which is a performance problem solved with volume. Exultation as part of the exposition itself, so that the preaching is not only accurate about the worth of God but is itself an act of treasuring him. The sermon does not describe worship happening elsewhere. It is worship, out loud, in front of people.
Pro-tip: If nothing in the passage moved you this week, the congregation is about to hear a report.
The instinct behind the flat sermon is often reverence, which is why it is hard to see. You do not want to manufacture feeling. You have sat under preachers whose intensity was theater, and you decided years ago you would rather be sober than fake. That is understandable.
But the opposite of manufactured emotion is not no emotion. It is real emotion, which comes from somewhere. It comes from spending the week in the glory of a passage and being undone by the depth inside it. You cannot exult on Sunday over a text you only processed on Saturday.
The discipline is not a delivery technique. It is worship as preparation. Somewhere in the study week, stop working the passage and sit under it. Ask what in this text is worth more than what you are treasuring right now, and stay there until something in you answers. That is not sermon prep in the usual sense. It is the part that makes the rest of it preaching instead of instruction.
Preach as a man who has encountered the true and living God.