Imagine There's No Satan

About seven years ago, I was challenged with the idea of where Satan came from and told that the ancient Hebrews didn’t believe in Satan. Well, that just didn’t fly with me because I knew that the Torah (the five books of Moses) was the foundation for the Psalms and the Prophets (the rest of the Old Testament writings) and the Old Testament was the foundation for the New Testament writing such as the gospels and the apostolic writings. And I knew, or at least I thought I knew, the Old Testament clearly taught about Satan.