The Gospel of Jesus Christ is God’s story from beginning to end. It is the good news that because Jesus died for our sins, rose again, and is victorious over all the enemies of man, we are no longer separated from God. But, to understand the gospel, we must understand the need for the gospel.
God decided in eternity past to create the world to reveal His glory (Ps. 19:1). Every part of creation was designed to unveil God's attributes. God then designed mankind uniquely to be in His image, (Gen. 1:26-28), and gave them the special privilege of reflecting some of His attributes (e.g. His love, kindness, gentleness, forgiveness, justice, etc.) in the world He created. Beginning with Adam, mankind quickly got off of God's designed course (Gen. 3:1-24; Rom. 5:12) and chose the path of rebellion, sin, and death. Later, God created the nation Israel to be His chosen and treasured people so that they would be a blessing to the nations (Gen. 12:1-3; Deut. 7:6-11), but they too chose to rebel against God. The judges, the kings, and the prophets all failed to steer Israel back to God's intended course.
But God fulfilled a promise He made from the beginning (Gen. 3:15). Jesus Christ, God in flesh, came to do what people are completely unable to do. Only through the death and resurrection of Jesus Christ, the perfect God-Man, are the redemption of man and the restoration of creation made possible. Jesus is our SAVIOR (He saved us from God’s eternal wrath); Jesus is our LORD (He is the master whom we love and serve); Jesus is our KING (He is the victorious king that is establishing His kingdom and overthrowing the kingdom of darkness).
So there it is; there is God’s Story. That is the message of the Gospel. It is the story God has been telling from the very beginning (John 1:1-14).