1:9 As - He speaks upon mature deliberation; after pausing, it seems, between the two verse s. We - I and the brethren who are with me. Have said before - Many times, in effect, if not in terms. So I say - All those brethren knew the truth of the gospel. St. Paul knew the Galatians had received the true gospel.

Galatians 1:9 Parallel Commentaries

The Praise of Men.
"They loved the praise of men more than the praise of God."--John xii. 43. This is spoken of the chief rulers of the Jews, who, though they believed in Christ's Divine mission, were afraid to confess Him, lest they should incur temporal loss and shame from the Pharisees. The censure passed by St. John on these persons is too often applicable to Christians at the present day; perhaps, indeed, there is no one among us who has not at some time or other fallen under it. We love the good opinion …
John Henry Newman—Parochial and Plain Sermons, Vol. VII

Sudden Conversions.
"By the grace of God I am what I am: and His grace which was bestowed upon me was not in vain."--1 Cor. xv. 10. We can hardly conceive that grace, such as that given to the great Apostle who speaks in the text, would have been given in vain; that is, we should not expect that it would have been given, had it been foreseen and designed by the Almighty Giver that it would have been in vain. By which I do not mean, of course, to deny that God's gifts are oftentimes abused and wasted by man, which …
John Henry Newman—Parochial and Plain Sermons, Vol. VIII

So Great Blindness, Moreover, Hath Occupied Men's Minds...
43. So great blindness, moreover, hath occupied men's minds, that to them it is too little if we pronounce some lies not to be sins; but they must needs pronounce it to be sin in some things if we refuse to lie: and to such a pass have they been brought by defending lying, that even that first kind which is of all the most abominably wicked they pronounce to have been used by the Apostle Paul. For in the Epistle to the Galatians, written as it was, like the rest, for doctrine of religion and piety, …
St. Augustine—On Lying