The Holy Spirit came with power on the disciples

Scripture references

Acts 2:1–4 (ASV)

And when the day of Pentecost was now come, they were all together in one place. 2And suddenly there came from heaven a sound as of the rushing of a mighty wind, and it filled all the house where they were sitting. 3And there appeared unto them tongues parting asunder, like as of fire; and it sat upon each one of them. 4And they were all filled with the Holy Spirit, and began to speak with other tongues, as the Spirit gave them utterance.

Acts 2:4–11 (ASV)

4And they were all filled with the Holy Spirit, and began to speak with other tongues, as the Spirit gave them utterance.

5Now there were dwelling at Jerusalem Jews, devout men, from every nation under heaven. 6And when this sound was heard, the multitude came together, and were confounded, because that every man heard them speaking in his own language. 7And they were all amazed and marvelled, saying, Behold, are not all these that speak Galilaeans? 8And how hear we, every man in our own language wherein we were born? 9Parthians and Medes and Elamites, and the dwellers in Mesopotamia, in Judaea and Cappadocia, in Pontus and Asia, 10in Phrygia and Pamphylia, in Egypt and the parts of Libya about Cyrene, and...

Stories

Marziyeh thought it impossible that she would ever speak in tongues, but one day, after yielding to God, the impossible became possible; publicly, she spoke in other tongues. This great experience continued even after she got home.
During a Bible training session led by Pastor Ronny for the underground church in Beijing, Bob Fu and other believers present experienced "Pentecost" - the Holy Spirit, like a mighty wind, fell upon them and they spoke in other tongues.
During a Christmas day meeting in Yarinacocha, as the preacher talked about the revival in the book of Acts happening again, the Holy Spirit honoured that meeting; falling powerfully upon the people and causing them to speak in unknown tongues.
A group of believers in Shengyang hoping to evade arrest by the local police, often went to the mountainside to worship. One day, the Holy Spirit fell upon them while they were praying and many received the gift of speaking in strange tongues.
A missionary testified of the outpouring of God's spirit amongst believers in Arulappen and how that brought a noticeable change in the lives of the people.
On May Day (the big Soviet Communist holiday) in 1994, believers in Erdenet gathered - not honour communism, but to celebrate the Living God. And after a sermon on the Holy Spirit's power, He came among them, and many were blessed to speak in other tongues.