The Promise of The Holy Ghost

Acts 2:1-5

1  And when the day of Pentecost was fully come, they were all with one accord in one place. 
2  And suddenly there came a sound from heaven as of a rushing mighty wind, and it filled all the house where they were sitting. 
3  And there appeared unto them cloven tongues like as of fire, and it sat upon each of them. 
4  And they were all filled with the Holy Ghost, and began to speak with other tongues, as the Spirit gave them utterance. 
5  And there were dwelling at Jerusalem Jews, devout men, out of every nation under heaven.