Pentecost
When the day of Pentecost came, they were all together in one place. Suddenly a sound like the blowing of a violent wind came from heaven and filled the whole house where they were sitting. They saw what seemed to be tongues of fire that separated and came to rest on each of them. All of them were filled with the Holy Spirit and began to speak in other tongues as the Spirit enabled them.
Acts 2:1-3
When the day of Pentecost came, something new came. John had prophesied concerning Jesus, “I baptize you with water. But one more powerful than I will come, the thongs of whose sandals I am not worthy to untie. He will baptize you with the Holy Spirit and with fire.” Luke 3:16. Jesus never did this in His life before the crucifixion, yet alive today, He is the baptizer with the Holy Spirit.
The Kingdom of Heaven poured out His Spirit, and the believers were given power from on high to be witness.This was the baptism in the Holy Spirit. This was not the same as the receiving as the Spirit. They had received the Spirit prior, according to John’s Gospel, after His resurrection when He appeared to them.