What is the Gospel of the Grace of God?

"What is the Gospel of the Grace of God? In short, the Gospel of the Grace of God is the Gospel the Apostle Paul preached to Jews and Gentiles and wrote about in his letters. It is not the same Gospel Peter, James and John preached and wrote in their letters. All of Christ's Apostles (i.e. Peter, James, John, Paul, etc.) preached Christ, but they didn't all have the same Gospel message. They didn't have the same purpose or audience either.

That may seem like a shocking statement, but it's not. It just seems that way because a lot of people aren't saying it. In fact, the statement is Biblical and provable"