I’ve written before about preaching without (or with less) notes (here and here). Here’s some more advice from Jerry Weissman on how to disconnect from your notes and connect with your hearers.
One CFO showed up for his coaching session at my company with his presentation written out in full sentences. I asked him to reduce each sentence to a four-word bullet and to speak from that. He did and it flowed. Then I asked him to reduce each four-word bullet to one word and to speak from that. He did and it flowed. Then I asked him to speak without any text. He did and it flowed.
Why not try it on Sunday?
At least with one of your points.
You can blame me!