Jesus fulfilled the roles of priest, prophet, and king as described in prophecies. These three roles represent God's authentication of Jesus as the Messiah. When Jesus was put on trial and crucified, he fulfilled more prophecies involving being hung on a tree and the high priest tearing his robe, showing he was the promised Messiah. Jesus' death and resurrection occurred during the Pax Romana period of the Roman Empire and led to the spread of Christianity throughout the known world.