The gospel that Christians use is based on the Bible story of Jesus Christ's life, death, burial and bodily resurrection into heaven. They think the body of Jesus is sitting on the right hand of God. I've heard variations of this gospel but I'm pretty sure that most Christians will agree with this gospel message they use. Anyone who believes in this Jesus as their Lord and Savior will then be a saved new Christian. According to the gospel that Christians use, Jesus would have preached a false gospel. What gospel would he be preaching if the Christians believe it was about his death and resurrection? Jesus was still alive when the gospel he preached found all his disciples. The disciples had no idea about his death and resurrection in the body so Jesus certainly wasn't preaching the Christian gospel to them. Otherwise, they wouldn't have been surprised at his resurrected body in the upper room. He didn't even tell them he was going to be killed until right before it happened. This means that Jesus couldn't have been preaching the Christian gospel.