Luke
Acts 2:17ESV·traditional attribution

“‘And in the last days it shall be, God declares, that I will pour out my Spirit on all flesh, and your sons and your daughters shall prophesy, and your young men shall see visions, and your old men shall dream dreams;

John Calvin Reformed @genevareformer

17. It shall be in the last days By this effect he proveth that the Messiah is already revealed. Joel, indeed, doth not express the last days, (Joel 2:29;) but for as much as he intreateth of the perfect restoring of the Church, it is not to be doubted but that that prophecy belongeth unto the last age alone.

Matthew Henry Presbyterian @wholebiblehenry

We have here the first-fruits of the Spirit in the sermon which Peter preached immediately, directed, not to those of other nations in a strange language (we are not told what answer he gave to those that were amazed, and said, What meaneth this?) but to the Jews in the vulgar language, even to those that mocked; for he begins with the notice of that...

Commenting on Acts 2:14-36

John Gill Reformed Baptist @doctorgill

And it shall come to pass in the last days,.... In Joel it is, "afterwards"; instead of which Peter puts, "in the last days"; the sense is the same: and so R. David Kimchi, a celebrated commentator with the Jews, observes, that "afterwards" is the same "as in the last days", and which design the times of the Messiah; for according to a rule given...