The gospel is the proclamation of good news that the promised Messiah/Deliverer has come and that His name is Jesus. This proclamation of good news is rooted in the OT promise of the Messiah/Deliverer who comes in both suffering and glory to rescue mankind and the cosmos from the effects of Adam’s rebellion and the resultant curse.
Without diminishing other aspects of the good news that the promised Messiah/Deliverer has come, I understand that the heart of the gospel is that Jesus lived the life that we failed to live, died the death that we deserve to die, and rose again to restore the life we forfeited because of our sin.
The Gospel has implications at numerous levels:
Personal level – the Gospel is about the most passionate love, the deepest mercy, the most magnificent grace, the most underserving forgiveness, and the greatest transforming power – because of the death and resurrection of Jesus Christ.
Church level – the gospel creates a new community of believers whose lives corporately reflect the most passionate love, the deepest mercy, the most magnificent grace, the most underserving forgiveness, and the greatest transforming power.
Societal level – the gospel takes transformed individuals living in transformed community to bring about transformation in all areas of society that have been affected by the ravages of human rebellion and idolatry.
Cosmic Level – the gospel guarantees the consummate transformation of all things at the Second Coming of Christ in the ushering in of the New Heavens and the New Earth.