"But bade them farewell, saying I must by all means keep this feast that cometh in Jerusalem: but I will return again unto you, if God will. And he sailed from Ephesus."
Paul stayed with the Jews at Ephesus until all that he could do there with the spirit was exhausted. The Lord knew where Paul needed to be, Paul was obiedent to Jesus's commission. After he left Ephesus Paul went all over the country strengthening disciples of Jesus. Isn't that amazing. That Paul could just leave any place at any time traveling according to the will of God. It was such an encouragement to me, it just reminded me of the commission, that for me it wasn't about staying detached of people not development life-long friendships but staying in accordance to God's will. Saul of Tarsus and Barnabas stayed very close and yet at time when God pulled them to their own missionary works they went separate ways... BUT they wrote letter to each other, prayed for their walks, and visited.