I am not trying to start a fight, and this could be a dissertation, but to answer your question or questions? The only thing you are to do during this dispensation of grace (the Church) is to believe the Gospel. The Gospel is made clear in 1 Corinthians 15: 1-4  Paul was made the apostle to the gentiles. During his ministry the "Risen Lord" showed (revealed) to him several mysteries. What is a mystery? I believe it is correct to say that a mystery is a secret that is in the mind of God until it is revealed. Paul was shown the Gospel in the light of "believing in the death, the burial, and the resurrection of the Lord Jesus Christ"..that's it..that's the Gospel..the Good News. The 10 Commandments are a schoolmaster, which you can't keep, they are the pointer to the One who did. It doesn't mean you don't strive to live them out, but Christ fulfilled them. One other mystery which many people may disagree is the rapture. Paul was the first person in scripture "I show you a mystery"..there where perhaps references, shadows, images, whatever figurative language you want to use, but he reveals the mystery of the body of Christ and the catching away. There is an old saying "All scripture is for you, but not all scripture is to you" Example, many times people use Matt. 24 and the end-times to discuss the rapture. Jesus was a Jew in Jerusalem, some of the time discussing with his disciples the coming time of "Jacob's Troubles", and they wanted to know when the Kingdom would be given back to Israel, and who do I need to fight so I can sit there with you. That's a very broad example, but the point is that the disciples where often talking about when will Israel's Kingdom be restored, the Church is not even in existence. I'm sorry if I sound like a know it all, but I am just persuaded. Lord willing I will do better the next time. God Bless, Jimmy