Bringing into prominence the first impulse of the act. See on began, Act 1:1.
With other tongues (ἑτέραις γλώσσαις)
Strictly different, from their native tongues, and also different tongues spoken by the different apostles. See on Mat 6:24.
Gave (ἐδίδου)
A graphic imperfect; kept giving them the language and the appropriate words as the case required from time to time. It would seem that each apostle was speaking to a group, or to individuals. The general address to the multitude followed from the lips of Peter.
Utterance (ἀποφθέγγεσθαι)
Used only by Luke and in the Acts. Lit., to utter. A peculiar word, and purposely chosen to denote the clear, loud utterance under the miraculous impulse. It is used by later Greek writers of the utterances of oracles or seers. So in the Septuagint, of prophesying. See 1Ch 25:1; Deu 32:2; Zec 10:2; Eze 13:19.