The Bible (from Koine Greek τὰ βιβλία ta biblia "the books") refers to any one of the collections of the primary religious texts of Judaism and Christianity. There is no common version of the Bible, as the individual books (Biblical canon), their contents and their order vary among denominations. Mainstream Judaism divides the Tanakh into 24 books, while a minority stream of Judaism, the Samaritans, accepts only five. The 24 texts of the Hebrew Bible are divided into 39 books in Christian Old Testaments, and complete Christian Bibles range from the 66 books of the Protestant canon to the 81 books of the Ethiopian Orthodox Church Bible. The Hebrew and Christian Bibles are also important to other Abrahamic religions, including Islam and the Bahá'í Faith, but those religions do not regard them as central religious texts.
The Jewish Bible, or Tanakh, is divided into three parts: (1) the five books of the Torah ("teaching" or "law"), comprising the origins of the Israelite nation, its laws and its covenant with the God of Israel; (2) the Nevi'im ("prophets"), containing the historic account of ancient Israel and Judah focusing on conflicts between the Israelites and other nations, and conflicts among Israelites – specifically, struggles between believers in "the Lord God" and believers in foreign gods, and the criticism of unethical and unjust behavior of Israelite elites and rulers; and (3) the Ketuvim ("writings"): poetic and philosophical works such as the Psalms and the Book of Job.
The Christian Bible is divided into two parts. The first is called the Old Testament, containing the (minimum) 39 books of Hebrew Scripture, and the second portion is called the New Testament, containing a set of 27 books. The first four books of the New Testament form the Canonical gospels which recount the life of Christ and are central to the Christian faith. Christian Bibles include the books of the Hebrew Bible, but arranged in a different order: Jewish Scripture ends with the people of Israel restored to Jerusalem and the temple, whereas the Christian arrangement ends with the book of the prophet Malachi. The oldest surviving Christian Bibles are Greek manuscripts from the 4th century; the oldest complete Jewish Bible is a Greek translation, also dating to the 4th century. The oldest complete manuscripts of the Hebrew Bible (the Masoretic text) date from the Middle Ages.
During the three centuries following the establishment of Christianity in the 1st century, Church Fathers compiled Gospel accounts and letters of apostles into a Christian Bible which became known as the New Testament. The Old and New Testaments together are commonly referred to as "The Holy Bible" (τὰ βιβλία τὰ ἅγια). Many Christians consider the text of the Bible to be divinely inspired, and cite passages in the Bible itself as support for this belief. The canonical composition of the Old Testament is under dispute between Christian groups: Protestants hold only the books of the Hebrew Bible to be canonical; Roman Catholics and Eastern Orthodox additionally consider the deuterocanonical books, a group of Jewish books, to be canonical. The New Testament is composed of the Gospels ("good news"), the Acts of the Apostles, the Epistles (letters), and the Book of Revelation.
The Bible is the best-selling book in history with approximate sales estimates ranging from 2.5 billion to 6 billion.