This goes against the whole book naming paradigm, each book should get its own tag, which is the name of the book. I guess this will be a tag-synonym request.
That's a great question, Lance, and it was something that nobody really wanted to do. The problem is that somebody had already created a hebrew tag, which is perfectly reasonable, but SE automatically corrects hebrews to hebrew.
Everyone who happened to be in chat at the time seemed to agree we could use a book-of-hebrews tag for the time being, and once we get moderators, we can make a proper hebrews tag. It looks like SE has appointed two pro-tem moderators, so I would expect that it would not be long before you see this situation rectified.