Acts 18:19-21
And he came to Ephesus, and left them there: but he himself entered into the synagogue, and reasoned with the Jews.
Nave's Topical Index—AKJV

Acts 19:1
And it came to pass, that, while Apollos was at Corinth, Paul having passed through the upper coasts came to Ephesus: and finding certain disciples,
Nave's Topical Index—AKJV

Acts 20:16-38
For Paul had determined to sail by Ephesus, because he would not spend the time in Asia: for he hurried, if it were possible for him, to be at Jerusalem the day of Pentecost.
Nave's Topical Index—AKJV