All these had to submit to Pauls revelation of the gospel or else the Word of God is not true...and we know its true
"all men will be judged according to my gospel" "if any man preach another gospel, let them be accursed" Paul Himself wrote how he rebuked Peter and the others, in effect, for straying from the truth of the gospel delivered to him.
Submit to Paul's revelation of the gospel?
Act 15:2 When therefore Paul and Barnabas had no small dissension and disputation with them, they determined that Paul and Barnabas, and certain other of them, should go up to Jerusalem unto the apostles and elders about this question.
Who sought the approval of whom here? And what was the final decision and who made it?
Act 15:13 And after they had held their peace,
James answered, saying, Men and brethren, hearken unto me:
.
Act 15:19
Wherefore my sentence is, that we trouble not them, which from among the Gentiles are turned to God:
Paul was used to write much of the N.T. and he was a deeply converted man but to say the gospel of Paul is ridiculous...
Rom 1:1 Paul, a servant of Jesus Christ, called to be an apostle, separated unto the
gospel of God,
Rom 1:16 For I am not ashamed of the
gospel of Christ: for it is the power of God unto salvation to every one that believeth; to the Jew first, and also to the Greek.
Rom 15:16 That I should be the minister of Jesus Christ to the Gentiles, ministering the
gospel of God, that the offering up of the Gentiles might be acceptable, being sanctified by the Holy Ghost.
And on and on it goes. Paul knew Who's gospel he taught and knew that the other Apostles were just as enlightened as he was.