Beloved, if one does not know what the one true gospel is, he most certainly does not know what the kingdom of God is. The one true gospel without controversy in the grace of God is the Mashiach, Yeshua of Nazareth, died for our sins according to the Tanach, He was buried and He rose again the third day according to the Tanach (Luke 24, 1 Cor 15). The one true gospel is the power of God unto salvation to everyone who believes, to those of Yudah first (in the days of Paul), and to the nations (Gentiles). In our day it is to the nations first, and then to Yudah, for judgment comes upon the land of the nations first.
There is only one gospel. And so in Matthew 4:23, where it is written, “Yeshua went about all Galilee, teaching in their synogogues (buildings made with men’s hands), and preaching the gospel of the kingdom”, this gospel is one and the same gospel that is declared in Luke 24 & 1 Cor 15. It is one and the same gospel that the resurrected Mashiach, Yeshua, preached, and Paul and the apostolos imitated. There is certainly the testimony of two or more here. The gospel of the kingdom is the Mashiach died for our sins according to the Tanach, He was buried and He rose again the third day according to the Tanach. This gospel of the kingdom is the same what Yeshua speaks of in John 3:3, “Except a man be born from above, he cannot see the kingdom of God.” The “kingdom of Matthew 4 is the kingdom of God in John 3, and together it is the one true gospel. Except God gives grace from above according to His will a person cannot see the “kingdom of God”, the one true gospel. And to see the gospel of the kingdom is to enter into the kingdom of God. When one enters into the kingdom of God he sees what he enters into to, and it is the one true gospel. Before the death, burial and resurrection of the Mashiach, Yeshua, He primarily spoke the gospel in parables: for had they known the Lord of glory, they would not have crucified Him. They could not believe according to the purpose of God.
It is asked of Yeshua in Matthew 18, “Who is the greatest in the kingdom of heaven?” or it could be said, “who is the greatest in the one true gospel?”…”Except you be converted and become as little children, you cannot enter into the kingdom of heaven.” And how can a person be converted unless God makes choice before he or she has done neither good or evil? They cannot not. Man has no free will. There is only the will of God, for a person to accept the one true gospel or not. This is the will of God, and if they accept, this is born from above.
And so the kingdom of heaven or the kingdom of God is the one true gospel, and the one true gospel I know and have clearly declared, and those with me are attached by grace and the will of God to this same gospel, as I am too.