Luke
Acts 11:2ESV·traditional attribution

So when Peter went up to Jerusalem, the circumcision party criticized him, saying,

John Calvin Reformed @genevareformer

2. They reasoned with him. Obstinacy doth for the most part accompany error. This was now a fault having in it too gross ignorance, in that they did not quietly receive the Gentiles into their bosom, united to them by the same Spirit of faith. But they do not only leap back, but also contend with Peter contentiously, and blame him for his fact, which deserved great praise.

Matthew Henry Presbyterian @wholebiblehenry

The preaching of the gospel to Cornelius was a thing which we poor sinners of the Gentiles have reason to reflect upon with a great deal of joy and thankfulness; for it was the bringing of light to us who sat in darkness.

Commenting on Acts 11:1-18

John Gill Reformed Baptist @doctorgill

And when Peter was come up to Jerusalem,.... From Caesarea, after he had stayed some certain days in Cornelius's house; so a journey from Caesarea to Jerusalem is called an ascending from the one to the other, Act 25:1 because Jerusalem stood on higher ground, as well as was the metropolis of the country; and this was a journey of six hundred furlongs, or seventy...