I have a vivid imagination, and I'm a writer. So these two verses illicit quite the scene in my mind's eye. As a writer, an inspiring thought goes through my mind and I grab pen and paper to try and capture it. You never know where a thought will lead you - to a devotion, a song, a book!
My active imagination sees David in full armor, of course, as he has a thought and runs to "jot down" these words of inspiration: