I am interested in implementing this for you.
I need to understand the file tree better to solve for corner cases, e.g. Is it "firstJohn", "1st-John", "1_john", etc.
If you could share the audio files or where you got them, that would work.
If that isn't possible or if they cost money: You can get the whole file tree by running the following command in command prompt (without the quotes) "cd = \bible && tree /f"
Alternatively (if this doesn't work out), I googled "bible pc voice controlled for the blind" and google served this electronic Bible Audio player for kids and the blind
https://www.ebay.com/itm/256468428287