Mark 1:14 “Now after that John was put in prison, Jesus came unto Galilee, preaching the Gospel of the Kingdom of God.”
Isn’t it interesting that Matthew uses the word gospel 5 times. Three of those times he speaks of the gospel of the Kingdom, and the other two times he says this gospel and the gospel. Mark speaks of the gospel of Jesus Christ and the gospel of the Kingdom of God. The book of Acts says the gospel of the grace of God. Romans declares the gospel of His Son, the gospel of Christ, and the gospel of God. The rest of the epistles repeat these terms many times.
Now what is amazing is that Matthew never says “gospel of the Kingdom of heaven.” There is no such thing as a gospel of the Kingdom of heaven, for it is not, as in the Kingdom of God, good news concerning one’s personal salvation. The Kingdom of God is a message to be preached and believed. The Kingdom of heaven is a political system that must be physically instituted. Every single reference confirms this.
So, we might ask “If there is no Kingdom of heaven gospel, why does Matthew use the word gospel 5 times, or why use it at all?” Matthew was not limited to speaking of the Kingdom of heaven by the Holy Spirit. It is however, his main emphasis and he therefore minimizes any comments he must make concerning the Kingdom of God. But when Matthew does speak of the Kingdom of God, as noted 5 times, he actually uses the term 3 times in relation to healing. One time he speaks prophetically of the future message being preached during the tribulation as, gospel of the Kingdom—which would be the good news of the coming Kingdom of God and Kingdom of heaven combined in Christ’s Kingdom. And the last time, Matthew writes about a very personal act by a repentant woman that Jesus wanted to be included in the preaching of the gospel (which would be prophetic of the Kingdom of God) until He returns.
Just think, if Matthew had said “gospel of the Kingdom of heaven” it would have changed the picture completely. Thank God, He has it all under control! And thank God for the good news of the Kingdom of God!