Note 10 at Acts 2:8: There were at least 13 different foreign regions or groups of people identified in this list. That would cause us to believe that more than the twelve apostles were speaking in tongues (see note 5 at Acts 2:4, p. 576). Some have suggested that it was not the apostles who were speaking in tongues but the hearers who were hearing in their native tongues. That is definitely not what Luke is portraying in this account. "They (i.e. the disciples) spoke in other tongues as the Spirit gave them the utterance" (v. 4).