The honest answer: as long as it takes to develop one idea and call for a response, and not one minute longer. For most congregations that lands between twenty-five and thirty-five minutes.
Length is a symptom, not the disease
Long sermons are rarely too long because of the clock. They are too long because they carry two or three sermons at once, or because they were never rehearsed out loud. Fix the idea count and the time usually fixes itself.
What should actually set your length
- How many ideas you are carrying. One idea, twenty-five to thirty minutes. Two ideas, cut one.
- Your congregation's attention culture. A college plant and a rural church that has heard fifty-minute sermons for forty years are different rooms.
- Your own density. Some preachers say more in twenty minutes than others do in fifty.
- The service context. Funerals: twelve minutes. Weddings: eight. Guest pulpit: whatever they told you, minus two.
How to cut
- Delete your weakest point entirely rather than trimming all three.
- Cut the introduction in half. Nearly every sermon starts three minutes late.
- Keep one illustration per movement.
- Rehearse out loud with a timer once. This alone typically saves five minutes.
If your problem is compression under pressure, How to Prepare a Sermon in One Hour is the drill.
Not sure how long your manuscript will actually run? Use the Sermon Length Calculator to get an estimate before Sunday.
Common questions
How long should a sermon be?
Most congregations are served well by 25 to 35 minutes. Length should be set by the density of the material and the attention culture of the congregation, not by tradition alone.
Is a 20-minute sermon too short?
No. A focused 20-minute sermon with one clear idea and a specific application often outperforms a 45-minute sermon carrying three competing ideas.
Take the checklist with you
The free 5-Step Sermon Prep Checklist. One page, from blank passage to preachable outline.