Treadigraph,
Yes, that's it; I knew it from the song "Turn Turn Turn". I too have the Byrds version, but I thought Pete Seeger recorded it originally, not sure though. No, I'm not a biblical scholar
In fact, I had a hard time actually finding a copy of the bible to get the original words for our theme. How did I know it came from Ecclesiastes? Can't remember? How did I think of it? Ditto, I just suddenly found the words of the song going round my head, and thought it might work.
This year's theme was much easier to think of, though not to research, fly, or write up!!!