Luke
Acts 20:29BSB·traditional attribution

I know that after my departure, savage wolves will come in among you and will not spare the flock.

John Calvin Reformed @genevareformer

29. For I know. Paul doth now exhort the Ephesians to watch diligently, by the necessity, which is a most sharp prick. For he saith that “grievous wolves are ready to invade the sheepfold.” This is a thing always incident to the Church to be hated of wolves. Wherefore, there is no time to sleep.

Matthew Henry Presbyterian @wholebiblehenry

It should seem the ship Paul and his companions were embarked in for Jerusalem attended him on purpose, and staid or moved as he pleased; for when he came to Miletus, he went ashore, and tarried thee so long as to send for the elders of Ephesus to come to him thither; for if he had gone up to Ephesus, he could never have got away from them.

Commenting on Acts 20:17-35

John Gill Reformed Baptist @doctorgill

And now brethren,.... So the apostle calls the elders of the church at Ephesus; though they had not the same gifts, and were not in the same high office as he was, yet he puts himself upon a level with them, as if he and they were fellow elders, as Peter calls himself, Pe1 5:1 which is an instance of the apostle's humility and affection...