So, the ministry is identical to that of Acts 9-28?
To the Jew first? Sign gifts?
Compare 1-2 Corinthians, Galatians, 1-2 Thess, Romans with:
The shift should hit you like a ton of bricks. No more advantage for the Jew, alien Gentiles included, no sign gifts. Why? What changed with the close of Acts? Could it be that Paul finally testified the gospel of the grace of God?
Gospel of Christ: 1 Cor 15:1-4 (KJV) to Jews and Gentiles in the promises
Gospel of the Grace of God: 1 Cor 15:1-4 (KJV) now includes Gentiles who were excluded from the promises
A simple progression in Paul's ministry.