THE OLD TESTAMENT
The authors of Hebrew Scriptures are not as identifiable as those of the New Testament. The books arose in the midst of the law given by Moses and the prophets sent by God to the children of Israel. The first five books (the Law) were written by Moses almost entirely. The remainder of the Old Testament is composed of the prophets and writings in the Hebrew canon, whereas the English Bible includes the following categories: historical books, poetic books, and prophetic books. These books include such authors as Samuel, David, Joshua, Solomon, and major prophets such as Isaiah, Jeremiah, and a number of lesser-known figures who wrote smaller books called the Minor Prophets. Each of these authours presents his words as being the Word of God.
THE NEW TESTAMENT
The New Testament was written by apostles of Jesus Christ and companions of the apostles. Letters were written to individuals, churches, or larger groups of persons either to confirm the truth of Christianity, engender belief in Christ, correct problems in the local churches, or argue against error. The Book of Revelation also seeks to present God’s plans for the end of the age.