You are witnesses of these things. I am going to send you what my Father has promised; but stay in the city until you have been clothed with power from on high.”

Exalted to the right hand of God, he has received from the Father the promised Holy Spirit and has poured out what you now see and hear.

Now there were staying in Jerusalem God-fearing Jews from every nation under heaven. When they heard this sound, a crowd came together in bewilderment, because each one heard their own language being spoken. 
(both Jews and converts to Judaism); Cretans and Arabs—we hear them declaring the wonders of God in our own tongues!”

 With many other words he warned them; and he pleaded with them, “Save yourselves from this corrupt generation.” Those who accepted his message were baptized, and about three thousand were added to their number that day.