This video is a bit biased perhaps, a bit generalized, but the Bible, Christianity and most religions are such deep wells, who can really fathom them all! I like this guy’s take on it.

Bible (n.)
“The Scriptures of the Old and New Testaments,” early 14c., from Anglo-Latin biblia, Old French bible (13c.) “the Bible,” also any large book generally, from Medieval and Late Latin biblia “the Bible” (neuter plural interpreted as feminine singular), from phrase biblia sacra “holy books,” a translation of Greek ta biblia to hagia “the holy books.” The Latin word is from the Greek one, biblion “paper, scroll,” also the ordinary word for “a book as a division of a larger work;” see biblio-.