Jamieson, Fausset and Brown on Acts 8:6-8

6-8. the people with one accord gave heed to ... Philip--the way being prepared perhaps by the fruits of our Lord's sojourn, as He Himself seems to intimate (see on Joh 4:31-38). But "we may mark the providence of God in sending a Grecian, or a Hellenistic Jew, to a people who from national antipathy would have been unlikely to attend to a native of Judea" [Webster and Wilkinson].