I reckon that the Old Testament is an amazing piece of literature. It contains lots of smaller books that were written between about 1400 BC and 200 BC in the ancient Hebrew language that have all been combined together into the one Old Testament. Although it is a collection of ancient books that were written by humans, it is also God's word. The Israelite people and Christians through the ages, and most importantly, Jesus, recognized that the words contained in the Old Testament, although human in origin, are also divine in origin. God has inspired the authors and spoken through them to bring us his message of the Old Testament (and of course, the New Testament).