My sitch has some similarities to yours in that my W is using spirituality as the overarching reason to end our union. This is a particularly tough time, there's little else to be said about that.
Unfortunately, I cannot offer you much in the way of advice, but others here with more experience will chime in. Keep praying for strength, and try to begin focusing on what you can do to change yourself and hopefully his perceptions. He's probably every bit as confused as you are.
Hang in there.
Me: 31 W: 28 M: almost 6 T: 10.5 S2 Bomb#1: 05/11 Bomb#2: 11/11 S'd: 11/28/11 Moved back in: 12/28/11 MC: 06/28/12