I don't know why Gemini felt it necessary to go on for a whopping 26 minutes on this topic, but this is what it produced on my first attempt. The first five minutes are worth listening to. The only indication that these voices are AI-generated is their inability to deal with "UU."
AI Engagement Guide for UU Congregations.wav
72.9 MB
When I asked Gemini to produce it again in five minutes, it came back with this 15-minute version which, as you'll see, opens differently.