The day of Pentecost was observed in Jerusalem fifty days after the celebration of the Passover, which commemorated Israel’s deliverance out of Egypt. It is significant that this day was chosen by the Lord to begin the fulfillment of Joel 2:28 “I will pour out My Spirit upon all flesh…”
The Spirit came upon the waiting, praying disciples in an overwhelming manner. Their complete commitment to Christ and His commission evoked a mighty baptism of God’s power. This was evidenced by their speaking in tongues (Acts 2:4). The Spirit was resident in their lives from that moment. The Spirit-filled early church witnessed many outstanding miraculous happenings (Acts 3:1-7; 4:31) and they were able to lead victorious lives as a result of their Pentecostal experience.
Two baptisms were disclosed on the day of Pentecost. There was a baptism in the Holy Spirit, and in the Apostle Peter’s message that followed, water baptism in the name of Jesus Christ was commanded (Acts 2:38). This outward, physical baptism merges with that of the Spirit, and is the “one baptism” of Ephesians 4:5. This is what Jesus referred to as being “born again” in John 3:3-7.
Acts 2: 38-39 “Then Peter said unto them, Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sins, and ye shall receive the gift of the Holy Ghost. For the promise is unto you, and to your children, and to all that are afar off, even as many as the Lord our God shall call .” (KJV)
Pentecost is not a denomination. It is a new birth experience. The people referred to as Pentecostal simply believe, teach, and receive all that transpired at the birth of the church.