Jesus was sent by his Father into the world with "WORKS TO DO." And he accomplished them all to the utmost satisfaction of his Father in heaven.
Having accomplished all his works, Jesus has truly said everything there is to say; has truly made known everything there is to be made known; and has truly shown everything there is to be shown—on how man can attain fullness of life.
In short, the world has no need for another messenger after Jesus.
But then, here comes a man—by the name of Paul—who claims to have been "sent not by humans nor by human mediation" but by Jesus Christ, and delivers his own version of the Gospel of Christ that turns Jesus and his Mission for the world upside down.
But the world believes!
And the world suffers!
Happy reading!