Saying “postmillennialism is the gospel” strikes many as an exaggerated rhetorical statement. And on some levels it may be. However, the basic sentiment that goes by the term “postmillennialism” today is that all of the nations of the world will be made holy prior to the consummation of the current time-space situation ie. before Jesus comes back.
In other words, the gospel message is that in Abraham’s seed, Jesus Christ, all of the nations will be blessed.
This is what Abraham was called to believe in, and it is what the apostles preached all throughout the book of Acts. What the New Perspective on Paul has sometimes failed to do is connect the Jew and Gentile relations in Pauline literature with the larger Old Testament promises.
It was always God’s plan to have a glorified creation. This is, after all, why he created Eve. The fact that God did not abandon his creation is testified to in the incarnation, and the fact that He will not discard his creation and start anew is testified to in the resurrection of Jesus.
And so away with invisible remnant religions! Away with anti-cultural quietists! Away with forensomonism!
Give us back the gospel!