…you will receive power 

when the Holy Spirit comes upon you. 

And you will be my witnesses, 

telling people about me everywhere…

…all the believers were meeting together 

in one place. 

Suddenly, 

there was a sound from heaven 

like the roaring of a mighty windstorm, 

and it filled the house where they were sitting. 

Then, 

what looked like flames or tongues of fire appeared 

and settled on each of them. 

And everyone present was filled with the Holy Spirit… 

Acts 1:8; 2:1-4