In the New Testament, the various modifiers bring out some aspect of the gospel that is being stressed in the context and is a part of the good news of what God offers us in Christ.
(1) The gospel of Jesus Christ ( Mark 1:1 ; 1 Cor. 9:12 ) and the gospel of His Son ( Rom. 1:9 ). These two descriptions speak of the good news of salvation that comes through the person and work of Jesus Christ who is the very Son of God in human flesh. Again, this is a good news of deliverance from sin’s penalty, power and presence through the two advents of Christ.
(2) The gospel of the grace of God (Acts 20:24 ) emphasizes that salvation in all of its aspects is on the basis of grace rather than on some meritorious system of works.
(3) The gospel of the kingdom (Matt. 4:23; 9:35; 24:14 ) is the good news that God will establish His kingdom on earth through the two advents of the Lord Jesus Christ.
(4) The gospel of peace ( Eph. 6:15 ) describes how this good news of salvation in Christ brings peace in all its many aspects (peace with God, the peace of God, peace with others, and world peace) through the victory accomplished by the Savior.
(5) The eternal or everlasting gospel (Rev. 14:6 ) expands our perspective of gospel as we normally think of it. This gospel as proclaimed by the angel has several key elements of gloriously good news that are developed in three commands and two reasons: