David..I think this is a real good backdrop for you to pop in a lyrical thought when the right one comes along. I really like the overall feel, and the 'arrangement' is fine for now--if it were me, I would just set it aside...I'd be 100% confident that, with the concept stuck in my mind, I'd encounter an "a-ha!" moment that would lead me to a solid lyrical storyline. I also like the half-step/diminished thingee that you used--takes the listener temporarily out of a comfortable/familiar set of changes for this style of music...that's good!

Try the godfather of psalmody...maybe he's got some stuff you can use!