God's salvation plan is spelled throughout the Scripture, beginning at the fall of man. There are a lot of people in the church that chanted a chant, prayed a prayer, and firmly believe that they have just purchased fire insurance. They want nothing to do with the Father (the mean God of the Old Testament), are terrified of the coming of the Father and Son at the end of days (not the rapture), because they will be ashamed.
Yet, they have this prayer that they prayed. Don't take me wrong, I am not trying to minumize the Roman's road to salvation. It spells it out perfectly, idiot proof, so to speak. They don't have to obey what has already been spelled out in the Old Testament. After all, they have fire insurance.
All of these books, the same books that the apostles read, give vivid details about the Father, the Son of Man, Jesus, and the Spirit of God (who is not a genie in the lamp). And they also provide details about the enemy. Enemies from the spiritual realm as well as the physical realm.
The people of God have been taught to shy away from these books, just to whisper the name of them is enough to cast one into the pit. What does the pit even mean? Is it a real place? You find this answer in those books.
It took me several times of reading them before I could even begin to understand what they were saying, and helped me put faces with the names, so to speak, of the events described in the Bible.
Read the books y'all. Believe me, when you stumble and gasp (and you will), then set the book down for a while and ask God to explain. And He will, maybe not right away, but He will.
The most sacred part of the Scripture still begins at the first 5 books. These tells us who God is, and what He wants and expects of us, His people. And these first 5 books also tells us that God has a plan, and He WILL redeem His people through His Son, Jesus.
I don't recommend these 'other books' to just anyone. But, if you are on this forum, reading this thread, then you have already shown to the Father that you want to learn. He will not load you up with more than you can handle. And the Master will not leave us hanging either. Where we go, Jesus goes.
Whew! I'm out of breath