Luke
Acts 18:23ESV·traditional attribution

After spending some time there, he departed and went from one place to the next through the region of Galatia and Phrygia, strengthening all the disciples.

Matthew Henry Presbyterian @wholebiblehenry

We have here Paul in motion, as we have had him at Corinth for some time at rest, but in both busy, very busy, in the service of Christ; if he sat still, if he went about, still it was to do good. Here is, I. Paul's departure from Corinth, Act 18:18. 1.

Commenting on Acts 18:18-23

John Gill Reformed Baptist @doctorgill

This man was instructed in the way of the Lord,.... Which John, whose baptism he only knew, came to prepare: the word here used signifies "catechised"; and suggests, that he was trained up by his parents in this way, who might have been the disciples of John, though afterwards removed from Judea to Alexandria; and that he only had been taught the rudiments of the...

Albert Barnes Presbyterian @notesbybarnes

Verse 23. The country of Galatia and Phrygia. He had been over these regions before, preaching the gospel, Strengthening. Establishing then by exhortation and counsel. . (d) "Galatia" (e) "strengthening"