Acts 6:9-14
Then there arose certain of the synagogue, which is called the synagogue of the Libertines, and Cyrenians, and Alexandrians, and of them of Cilicia and of Asia, disputing with Stephen.
Nave's Topical Index—AKJV

Acts 9:29
And he spoke boldly in the name of the Lord Jesus, and disputed against the Grecians: but they went about to slay him.
Nave's Topical Index—AKJV

Acts 18:17
Then all the Greeks took Sosthenes, the chief ruler of the synagogue, and beat him before the judgment seat. And Gallio cared for none of those things.
Nave's Topical Index—AKJV