Matthew Poole and continuators on Galatians 2:8

8 (For he that wrought effectually in Peter to the apostleship of the circumcision, the same was mighty in me towards the Gentiles .)

As Pauls call was equal to that of Peter, both of them being Divine, so (saith the Apostle) my ability and success was equal; as God wrought effectually in and by Peter in the discharge of his Apostleship in the Province berrusted to him, (which was preaching to the Jews.) so he wrought effectually, and mightily in me, or by me in the Province wherein I was imployed, viz. carrying the Gospel to the Gentiles This efficacious working of God both by Paul and Peter, was seen in the conversion of multitudes by their Ministry, as well as in their miraculous operations, by which they confirmed the Doctrine of the Gospel which they preached.

Marginal references: Act. 9.15. & 13.2. & 22.21. chap. 1.16.