The Bible is a library of 66 books written over 1500 years by more than 40 authors. Though written by many people, the Bible asserts it was inspired by God. The Old Testament contains 39 books written before Jesus, primarily in Hebrew. It recounts the creation of the world, the early history of Israel, and prophecies of a coming Messiah. The New Testament has 27 books written after Jesus' death in Greek, documenting the establishment of Christianity.