(for [book book-order
chapter (range 1 1000) :when (get-in bible [book (str chapter)])
verse (range 1 1000) :when (get-in bible [book (str chapter) (str verse)])]
[book chapter verse (get-in bible [book (str chapter) (str verse)])])
Notice that a single "for" can iterate in a multi-level structure. You can also use :let if you don't want to call (get-in) multiple times (which makes the code shorter, but more redundant and less efficient)
But I think you can do better than just saying "these are fairy tales". I recently read a book from a former atheist (Jennifer Fulwiler) who came from a very loving and intellectually honest family. Her father said this when she was young: "Make sure you don't start believing things just because someone says it's true, even if it's coming from me. Question everything." I wish more people would be like that, atheist and religious alike.