The word gospel is primarily associated with the good news related to Jesus Christ. He truly is the only way to have fellowship with God. Everything in the Old Testament points to Christ, and everything in the in the New Testament until the new Jerusalem points back to Christ. This I believe is the Eternal gospel. For Adam and Eve it was manifested as partaking of the tree of life and not that other tree, for the Israelites in the wilderness it was look at the brazen serpent or die. All of those things were a type of Jesus Christ. Of course today the gospel message is the epitome of God’s desire. Partake of redemption by the blood of Jesus Christ, and enjoy his life in you. This is the glorious gospel. However, in the last 3 1/2 years of the tribulation the eternal Gospel is manafested as not taking the mark, which is fearing God and worshiping him and giving him glory. What a difficult gospel. To take the mark means to live comfortably. Do not take the mark means probable death. But this is the eternal gospel and it has that basic goal of being able to be with God. It will go forth into the millennium and God will expose those who have a heart that does not want to obey him, And it will ride forth into the new Jerusalem. There will be no heart that is contrary to him. All inhabitants of that eternal city will be drinking living water, eating the tree of life, living by God and the Lamb as their supply. The eternal gospel will prevail.