The Hebrew Bible, or Tanakh, contains twenty-four books divided into three parts; the five books of the Torah ("teaching" or "law"), the Nevi'im ("prophets"), and the Ketuvim ("writings"). The first part of Christian Bibles is the Old Testament, which contains, at minimum, the twenty-four books of the Hebrew Bible divided into thirty-nine books and ordered differently than the Hebrew Bible. The Catholic Church and Eastern Christian churches also hold certain deuterocanonical books and passages to be part of the Old Testament canon. The second part is the New Testament, containing twenty-seven books; the four Canonical gospels, Acts of the Apostles, twenty-one Epistles or letters and the Book of Revelation.
By the 2nd century BCE Jewish groups had called the Bible books "holy," and Christians now commonly call the Old and New Testaments of the Christian Bible "The Holy Bible" (τὰ βιβλία τὰ ἅγια, tà biblía tà ágia) or "the Holy Scriptures" (η Αγία Γραφή, e Agía Graphḗ). Many Christians consider the whole canonical text of the Bible to be divinely inspired. The oldest surviving complete Christian Bibles are Greek manuscripts from the 4th century. The oldest Tanakh manuscript in Hebrew and Aramaic dates to the 10th century CE, but an early 4th-century Septuagint translation is found in the Codex Vaticanus.
The Bible was divided into chapters in the 13th century by Stephen Langton and into verses in the 16th century by French printer Robert Estienne and is now usually cited by book, chapter, and verse. The Bible has estimated annual sales of 25 million copies, and has been a major influence on literature and history, especially in the West where it was the first mass printed book.
The English word Bible is from the Latin biblia, from the same word in Medieval Latin and Late Latin and ultimately from Koine Greek τὰ βιβλία ta biblia "the books" (singular βιβλίον biblion).
Medieval Latin biblia is short for biblia sacra "holy book", while biblia in Greek and Late Latin is neuter plural (gen. bibliorum). It gradually came to be regarded as a feminine singular noun (biblia, gen. bibliae) in medieval Latin, and so the word was loaned as a singular into the vernaculars of Western Europe. Latin biblia sacra "holy books" translates Greek τὰ βιβλία τὰ ἅγια ta biblia ta hagia, "the holy books".
The word βιβλίον itself had the literal meaning of "paper" or "scroll" and came to be used as the ordinary word for "book". It is the diminutive of βύβλος bublos, "Egyptian papyrus", possibly so called from the name of the Phoenician sea port Byblos (also known as Gebal) from whence Egyptian papyrus was exported to Greece. The Greek ta biblia (lit. "little papyrus books") was "an expression Hellenistic Jews used to describe their sacred books (the Septuagint). Christian use of the term can be traced to ca. 223 CE. The biblical scholar F.F. Bruce notes that Chrysostom appears to be the first writer (in his Homilies on Matthew, delivered between 386 and 388) to use the Greek phrase ta biblia ("the books") to describe both the Old and New Testaments together.