The gospel is not behavior modification, becoming a better person or learning to become more moral. It is not taking the life of Jesus as a model way to live or transforming/redeeming the secular realm. It is not living highly communal lives with others and sharing generously in communities who practice the way of Jesus in local culture. These may all be good things but they are not to be confused with the gospel. They should accompany the gospel, and should not be separated from the gospel and while God may use them to authenticate the gospel and make our proclamation of the gospel more fertile in hardened hearts yet they are not to be viewed as replacements for the gospel.
Did you notice the one characteristic of all of the above activities has nothing to do with what Christ has done for us, but all about what we do for him.
The true gospel, rather, is news about what Christ the Saviour, has already done for us (in his life, death and resurrection) rather than instruction and advice about what you are to do for God.
Christ’s accomplishment, not ours, is the essence of the gospel. Above all, the gospel of Christ brings good news, rather than instruction about our behavior. The gospel of not about what we do, but our acts inevitably spring up and overflow in thanksgiving due to what Christ has done for us.
In short, the Gospel is the life-altering news that Jesus Christ, the eternal Son of God (John 3:16), became man, lived a sinless life under the Law, died for sinners (1 Peter 2:24) and rose again to reconcile them to himself, eternally victorious over every enemy that stood between God and man.
The gospel of Jesus Christ is the best news anyone will ever hear, and what a person does with this news will determine where he or she spends eternity. God is calling you to choose life. Call on the name of the Lord and be saved (Romans 10:13)!