The Bible

The Bible is a collection of 66 different books and letters, written over a period of approximately 1500 years up to about 100 years after the death and resurrection of Jesus Christ. It is divided into two major parts, called the Old Testament (the first 39 books) and the New Testament (the last 27 books). 

2 Timothy 3:16,17

16All Scripture is God-breathed and is useful for teaching, rebuking, correcting and training in righteousness, 17so that the man of God may be thoroughly equipped for every good work.