The Apostle Paul
Galatians 2:5ESV·traditional attribution

to them we did not yield in submission even for a moment, so that the truth of the gospel might be preserved for you.

John Calvin Reformed @genevareformer

5. To whom we gave place by subjection, no, not for an hour. This steadiness was the seal of Paul’s doctrine. For when false brethren, who wished nothing more than a ground of accusation against him, exerted themselves to the utmost, and he stood firm, there could no longer be any room for doubt. It cannot now be insinuated that he deceived the apostles.

Matthew Henry Presbyterian @wholebiblehenry

It should seem, by the account Paul gives of himself in this chapter, that, from the very first preaching and planting of Christianity, there was a difference of apprehension between those Christians who had first been Jews and those who had first been Gentiles.

Commenting on Galatians 2:1-10

John Gill Reformed Baptist @doctorgill

To whom we gave place by subjection,.... Meaning not the apostles, elders, and brethren at Jerusalem, who did not insist upon the observance of the rituals of the law as necessary, but were one and all of opinion that the Gentiles should be free from them; but the false teachers with whom they combated, and would not yield in the least unto, so as to...