I would suggest get any bible you want and then take an old (or new) stuff sack and take it to a local seamstress and have them make you a custom fitted bag. I have had bags made that cost about $15 for the labor plus the cost of the bag and zipper. You could go crazy and buy a 1/2 yard of Dyneema fabric (only the best for the best book) which would not be that much more than a decent waterproof stuff sack.