Who is God's chosen vessel to take the Gospel of Grace to the whole world now that Peter, James, and John are off the scene?
Paul is God's chosen vessel to carry the Gospel of Grace to the whole world after Peter, James, and John slipped off the scene. The context states those apostles lost their authority, while Paul was not behind the chiefest apostles and was commissioned to take this gospel beyond Israel to all nations.
Les explains that Paul repeatedly argues he was not a whit behind the chiefest apostles, meaning Peter, James, and John were not above him. Once they slipped off the scene and lost their authority, Paul became God's chosen vessel to take the Gospel of Grace not only to Israel but to the whole world. Les also notes Paul's 20 years of ministry involved continual beatings, imprisonments, and opposition from his own countrymen, suffering for the Gospel in a way the twelve did not endure during Christ's earthly ministry.