Then we went ahead to the ship and sailed to Assos, there intending to take Paul on board; for so he had given orders, intending himself to go on foot. 14 And when he met us at Assos, we took him on board and came to Mitylene. 15 We sailed from there, and the next day came opposite Chios. The following day we arrived at Samos and stayed at Trogyllium. The next day we came to Miletus. 16 For Paul had decided to sail past Ephesus, so that he would not have to spend time in Asia; for he was hurrying to be at Jerusalem, if possible, on the Day of Pentecost. — Acts 20:13-16.
Paul’s extensive travel plans are based on his desire to be at Jerusalem for Pentecost. He meets up with the rest of his party who went ahead of him to Assos.