The Bible (sometimes The Book or Good Book; from Greek (τα) βιβλια, (ta) biblia, (the) books, plural of βιβλιον, biblion, "book", originally a diminutive of βιβλος, biblos, which in turn is derived from βυβλος—byblos, meaning "papyrus", from the ancient Phoenician city of Byblos which exported this writing material), is the classical name for the Hebrew Bible of Judaism or the combination of the Old Testament and New Testament of Christianity ("The Bible" therefore actually refers to at least two different Bibles). It is thus applied to sacred scriptures. Many Christian English speakers refer to the Christian Bible as "the good book". For many people, their Bible is the revealed word of God or an authoritative record of the relationship between God, the world, and humankind. Both Bibles have been the most widely distributed of books. It has also been translated more times, and into more languages, than any other book. The complete Bible, or portions of it, have been translated into more than 2,100 languages. It is said that more than 5 billion copies of the Bible have been sold since 1815, making it the biggest selling book of all-time.