Acts 18:19-21

19And he came to Ephesus, and left them there: but he himself entered into the synagogue, and reasoned with the Jews.

20When they desired him to tarry longer time with them, he consented not;

21But 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.