Acts 2:7

They were all amazed and marvelled. — It will be noted that this is precisely in accordance with what St. Paul describes as the effect of the gift of tongues. They were a “sign” to them that believed not, filling them with wonder, but the work of convincing and converting was left for the gift of prophecy (1 Corinthians 14:22).

Are not all these which speak Galilæans? — This was, of course, antecedently probable, but it is singular that this is the first assertion of the fact as regards the whole company. The traitor had been apparently the only exception (see Note on Matthew 10:4), and he had gone to his own place.