Why does the Bible have an Old Testament and New Testament?

The entire Bible, all 66 books, was written over a period of 1500 years. The Old Testament, from Genesis to Malachi, was written to reveal God’s plan of Creation, redemption and salvation through the coming Messiah. It is focused on the nation of Israel and prophecy. It was compiled in the B.C. era, i.e. before Christ. […]