Albert Barnes' Notes on the Whole Bible - Galatians 1:1
Paul an apostle - See the note at Romans 1:1. This is the usual form in which he commences his epistles; and it was of special importance to commence the Epistle in this manner, because it was one design to vindicate his apostleship, or to show that he had received his commission directly from the Lord Jesus.Not of men - “Not from ἀπ ̓ ap' men.” That is, he was not “from” any body of people, or commissioned by people. The word apostle means “sent,” and Paul means to say, that he was not “sent”... read more
The Pulpit Commentary - Galatians 1:1-5
Introduction. The tone of this Epistle is decidedly controversial. In the first and second chapters the writer establishes against Judaistic assailants his apostolic authority. This, however, is only subsidiary to his main design, which is in the third and fourth chapters, as an accredited servant of God, to establish the gospel of Christ, or justification by faith against Judaism (a different gospel), or justification by the works of the Law. The fifth and sixth chapters may be said to... read more