Old Testament

"We also have the prophetic message as something completely reliable, and you will do well to pay attention to it, as to a light shining in a dark place, until the day dawns and the morning star rises in your hearts." 2 Peter 1:19

When it says the prophetic message, I assume it means the Old Testament. I think it's good for Christians to read the New Testament first so they understand the final revelation of Jesus Christ and the meaning of his coming, then read the Old Testament next so that when you read it you'll understand why we don't do some of the things that are done in the Old Testament, like sacrifice animals or stone people or avoid eating certain "unclean" foods. The point is, don't neglect the Old Testament. It's difficult to understand at points and it's very intense, but these are historical recordings of God's actions in this world that he's bringing about in order to save the fallen world and humankind. It's good to know the events of the family line that Christ came from and to see the pointers to Jesus in it.