6. Practice Your Sermon - Take time to preach your sermon out loud. Not only will you be able to time it, but you will also uncover parts that are confusing, too long, or just boring.
7. Plan with a Team – Share your thoughts and outline with others. This will help you discover things that don’t make sense, lack impact/interest, or are irrelevant to your main thought.
8. Don’t Get Emotionally Attached – Sometimes we fall in love with an idea or illustration and have a hard time cutting it. Be willing to slice and dice in order to keep your audience engaged.
9. Control Your Creativity – Don’t waste time with illustrations, props, videos and other creative elements that distract the audience rather than enhance your message. If using them, make sure they are memorable and drive the main point, not a sub point of a sub point.
10. Critique Your Message – Take time between services to evaluate your message with a team and then watch it on Monday. Regular critique will help you pick up on things that add length to your sermons.
via troypage.com