Those books included in the Bible by a tradition or group are called canonical, indicating that the tradition/group views the collection as the true representation of God’s word and will. A number of Biblical canons have evolved, with overlapping and diverging contents from denomination to denomination. The Hebrew Bible overlaps with the Greek Septuagint and the Christian Old Testament. The Christian New Testament is a collection of writings by early Christians, believed to be mostly Jewish disciples of Christ, written in first-century Koine Greek. Among Christian denominations there is some disagreement about what should be included in the canon, primarily about the biblical apocrypha, a list of works that are regarded with varying levels of respect.