The Epistle to the Galatians is considered outstanding among the writings of the Apostle Paul and has a unique color of Paul's personality. In it, the Apostle Paul reveals all his authority, some fundamentals of the Christian faith and yet their harshness against the Judaizing who question his authority.
From Paul, an apostle (not from men, nor by human agency, but by Jesus Christ and God the Father who raised him from the dead) (Gl 1:1 [NET])
We noticed as soon as the contents of the letter will just drift on apostolate, authority, Judaize. Here he starts to claim his authority.
and when James, Cephas, and John, who had a reputation as pillars, recognized the grace that had been given to me, they gave to Barnabas and me the right hand of fellowship, agreeing that we would go to the Gentiles and they to the circumcised. (Gl 2:9 [NET])
Therefore, given the situation of the letter and the reason for his writing. Paul in summary wants to present itself as authority granted by Jesus himself. The apostles before him, were consulted as far as possible. He met Peter, searched for other but saw only James. Then he returned to Jerusalem again and met John, apart from the others before. During all these meetings and this time, not opposed to it, on the contrary they gave him the hand.
Now I want you to know, brothers and sisters, that the gospel I preached is not of human origin. For I did not receive it or learn it from any human source; instead I received it by a revelation of Jesus Christ. (Gl 1:11-12 [NET])
The phrase "ἀποκάλυψις Ἰησοῦς Χριστός" (revelation of Jesus Christ) defines the gospel preached to the Galatians. This phrase is quoted by the Apostle Peter in 1: 12-13 to confirm the Gospel revealed to Paul and preached to the Galatians, too, confirming the words of the Apostle Paul in Galatians 2:9.
They were shown that they were serving not themselves but you, in regard to the things now announced to you through those who proclaimed the gospel to you by the Holy Spirit sent from heaven – things angels long to catch a glimpse of. Therefore, get your minds ready for action by being fully sober, and set your hope completely on the grace that will be brought to you when Jesus Christ is revealed. (1Pe 1:12-13 [NET])
The phrase "ἀποκάλυψις Ἰησοῦς Χριστός" (revelation of Jesus Christ) has become so celebrated among the apostles that is used to confirm the Book of Revelation's authority.
The revelation of Jesus Christ, which God gave him to show his servants what must happen very soon. He made it clear by sending his angel to his servant John. (Ap 1:1 [NET])
Again, I apologize for not being fluent in the English language. Due to the fact of having three logins excluded, will no longer participate in the forum. The Peace of the Lord Jesus Christ and the consolations sweet of Holy Spirit in God, the Father. Betho, Brazil.