1 Corinthians 16:4 - Matthew Poole's English Annotations on the Holy Bible

To encourage them to the more free and liberal contribution, he promiseth them himself to go along with those that carried it, if it were thought meet. Whether Paul, according to this promise, did go to Corinth, some question, because of what we read, 2 Corinthians 1:15,16. But others think, that he speaketh there of another journey, which he intended thither; and that he did go in a fulfilling of this promise, because we read, Acts 20:1-38, that he went into Greece, and spent there a considerable time; during which it is very probable that he did not omit to visit the church of Corinth.