The gospel is literally a joyful message. Paul encounters this joyful message on the road to Damascus. God called Him and revealed Jesus to His heart. In a moment the mystery of the cross and the empty tomb of Jesus was unveiled to Paul. Paul never recovered from that. He was changed. He was now a disciple. He was commissioned to preach, to make disciples. We are all called and commissioned as Paul was. Sure it looks different on how we have the Son revealed to us, but the story line is the same. We are chosen and called as the Son of God is revealed to our heart. God also calls us to a particular service for the equipping of saints for the work of service to the building up of the body of Christ. We are all called to be a disciple and to make disciples.