In every way they sought to undermine the authority of St. Paul. They said to the Galatians: "You have no right to think highly of Paul. He was the last to turn to Christ. But we have seen Christ. We heard Him preach. Paul came later and is beneath us. It is possible for us to be in error—we who have received the Holy Ghost? Paul stands alone. He has not seen Christ, nor has he had much contact with the other apostles. Indeed, he persecuted the Church of Christ for a long time."
When men claiming such credentials come along, they deceive not only the naive, but also those who seemingly are well-established in the faith. This same argument is used by the papacy. "Do you suppose that God for the sake of a few Lutheran heretics would disown His entire Church? Or do you suppose that God would have left His Church floundering in error all these centuries?" The Galatians were taken in by such arguments with the result that Paul's authority and doctrine were drawn in question.
Against these boasting, false apostles, Paul boldly defends his apostolic authority and ministry. Humble man that he was, he will not now take a back seat. He reminds them of the time when he opposed Peter to his face and reproved the chief of the apostles.
Paul devotes the first two chapters to a defense of his office and his Gospel, affirming that he received it, not from men, but from the Lord Jesus Christ by special revelation, and that if he or an angel from heaven preach any other gospel than the one he had preached, he shall be accursed.
The Certainty of Our Calling
Every minister should make much of his calling and impress upon others the fact that he has been delegated by God to preach the Gospel. As the ambassador of a government is honored for his office and not for his private person, so the minister of Christ should exalt his office in order to gain authority among men. This is not vain glory, but needful glorying.
Paul takes pride in his ministry, not to his own praise but to the praise of God. Writing to the Romans, he declares, "Inasmuch as I am the apostle of the Gentiles, I magnify mine office," i.e., I want to be received not as Paul of Tarsus, but as Paul the apostle and ambassador of Jesus Christ, in order that people might be more eager to hear. Paul exalts his ministry out of the desire to make known the name, the grace, and the mercy of God.
VERSE 1. Paul, an apostle, (not of men, etc.)
Paul loses no time in defending himself against the charge that he had thrust himself into the ministry. He says to the Galatians: "My call may seem inferior to you. But those who have come to you are either called of men or by man. My call is the highest possible, for it is by Jesus Christ, and God the Father."
When Paul speaks of those called "by men," I take it he means those whom neither God nor man sent, but who go wherever they like and speak for themselves.