Acts 2:7

“And they were all amazed, and marvelled, etc.] They were struck with surprise, they were as it were out of themselves, like persons in an ecstasy, not knowing what could be the cause or meaning of this: saying one to another; the phrase “one to another”, is left out in the Vulgate Latin and Ethiopic versions, and so it is in the Alexandrian copy: behold, are not all these which speak Galilaeans? rude, unpolished, and unlearned men; who had never been brought up in any school of learning, and had never learned any language but their mother tongue; and that they pronounced with an ill grace, and in a very odd manner; and which made the thing the more astonishing to them. The apostles were…”

“Galileans - Inhabitants of Galilee. It was remarkable that they should speak in this manner, because: They were ignorant, rude, and uncivilized, John 1:46. Hence, the term Galilean was used as an expression of the deepest reproach and contempt, Mark 14:70; John 7:52. Their dialect was proverbially barbarous and corrupt, Mark 14:70; Matthew 26:73. They were regarded as an outlandish people, unacquainted with other nations and languages, and hence, the amazement that they could address them in the refined language of other people. Their native ignorance was the occasion of making the miracle more striking. The native weakness of Christian ministers makes the grace and glory of God more…”

“amazed: Act 2:12, Act 3:10, Act 14:11, Act 14:12; Mar 1:27, Mar 2:12 are: Act 1:11; Mat 4:18-22, Mat 21:11; Joh 7:52 Acts 2:9”