Luke
Acts 21:12ESV·traditional attribution

When we heard this, we and the people there urged him not to go up to Jerusalem.

John Calvin Reformed @genevareformer

12. Both we. Because they had not all one revelation, it is no marvel if their judgments were diverse. For seeing these holy men knew that there consisted much in the life or death of one man, they would not have him to come in danger rashly.

Matthew Henry Presbyterian @wholebiblehenry

We have here Paul and his company arrived at length at Caesarea, where he designed to make some stay, it being the place where the gospel was first preached to the Gentiles, and the Holy Ghost fell upon them, Act 10:1, Act 10:44. Now here we are told, I. Who it was that entertained Paul and his company at Caesarea.

Commenting on Acts 21:8-14

John Gill Reformed Baptist @doctorgill

And when we heard these things,.... These prophecies, concerning the binding of the apostle by the Jews, and the delivery of him to the Romans, and saw the symbolical representations of these things: both we; the companions of the apostle, Luke and the rest: and they of that place; of Caesarea, Philip and his daughters, and the disciples that lived there: besought him not to...