Power and Authority are Given by Christ!

To challenge or attack the authority of the Apostle Paul was to challenge and attack the authority of Christ!
This was true of the all the prophets and apostles of the Lord Jesus; God spoke infallibly through them: These were men who were chosen by God to communicate God's revealed will to the people of God.
Power and authority were given by Christ to Paul and all the apostles to establish and build the church of the Lord Jesus Christ!