John Chrysostom
Do you see how they move from east to west? Meanwhile this served as encouragement for the Apostles themselves. They did not know what it meant to speak in Parthian, but now they learned it from these people. The writer mentions peoples hostile to them, Cretans, Arabs, Egyptians, and Persians, in order to show that they would overcome them all. Since the Jews were also in captivity at that time, it is likely that many of the nations came here with them. On the other hand, the report of the doctrines had already spread among the nations at that time. Therefore many of them were present here because they remembered what they had heard. Thus the testimony from all sides was irrefutable: from citizens, from foreigners, and from sojourners.