The Apostle Paul
Galatians 2:7ESV·traditional attribution

On the contrary, when they saw that I had been entrusted with the gospel to the uncircumcised, just as Peter had been entrusted with the gospel to the circumcised

John Calvin Reformed @genevareformer

7. But, on the contrary. They immediately gave him the right hand of fellowship. (Galatians 2:9.) Consequently they gave their testimony to his doctrine, and without any exception; for they produced nothing on the other side, as is commonly done on debated points, but acknowledged that he held the same gospel in common with them, and was therefore entitled to the honors and rank of an associate.

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

But contrariwise, when they saw that the Gospel,.... James, Cephas, and John, were so far from blaming or correcting anything in the apostle's ministry, or adding anything to it, that they highly approved of it; and as a token of their agreement with him and Barnabas, gave them the right hand of fellowship: the reasons of their so doing are inserted here, and in the...