“But Peter, standing up with the eleven, lifted up his voice, and said unto them, Ye men of Judaea, and all ye that dwell at Jerusalem, be this known unto you, and hearken to my words:”
King James Version (KJV)
2:14 Then Peter standing up - All the gestures, all the words of Peter, show the utmost sobriety; lifted up his voice - With cheerfulness and boldness; and said to them - This discourse has three parts; each of which, #Ac 2:14|,22,29, begins with the same appellation, men: only to the last part he prefixes with more familiarity the additional word brethren. Men of Judea - That is, ye that are born in Judea. St. Peter spoke in Hebrew, which they all understood.
Ac 2:14 Peter, standing up. In the name of all the apostles. Jesus had said that Peter should receive the keys of the kingdom (Mt 16:19), and they are now to be used to open its doors. With the eleven. Eleven other apostles besides himself. He now begins the first gospel sermon. He and the apostles now begin their witness to Christ.