Ephesus; the metropolis of the Lesser Asia, where afterwards that famous church was, unto which St. Paul wrote an Epistle, as also St. John wrote another, Rev_2:1.
Left them there; that is, Aquila and Priscilla at Ephesus, to confirm the believing Ephesians; whilst Paul
entered into the synagogue, and reasoned with the Jews; out of an extraordinary love for his nation, although he had suffered all those indignities from them, yet he would give them precept upon precept, and line upon line.