Luke
Acts 20:31ESV·traditional attribution

Therefore be alert, remembering that for three years I did not cease night or day to admonish every one with tears.

John Calvin Reformed @genevareformer

31. For which cause, watch. Paul doth again exhort them unto diligence by his own example, though he doth join therewithal fear of danger, as if he should say that they have need of great attention to beware; and that it is an unseemly thing that they should be wearied who had seen his singular “Infractam,” unbroken. patience by the space of three years.

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

I have showed you all things,.... Both as to doctrine and practice, and had set them an example how to behave in every point, and particularly in this: how that so labouring ye ought to support the weak; the sense of which is, that they should labour with their hands as he did, and so support the weak; either such who were weak in body...