The TeX Catalogue OnLine, Entry for bibleref-mouth, Ctan Edition

Consistent formatting of Bible references.

The package allows Bible references to be formatted in a consistent way. It is similar to the bibleref package, except that the formatting macros are all purely expandable — that is, they are all implemented in TeX’s mouth. This means that they can be used in any expandable context, such as an argument to a \url command.