What is it to be a Pentecostal

The root of Pentecostalism begins in Acts 2 in the upper-room with the gathering of the 120 disciples waiting in anticipation of the promised Gift from the Father; as what Jesus said the Holy Spirit will be sent in His Name (John 14:26). The disciples experienced the baptism of the Holy Spirit as commended of the Lord (Acts 1:5)and recieved power to become witnesses in Jerusalem, and in all Judea and Samaria, and to the ends of the earth (Acts 1:8). They were filled in the Holy Spirit and began to speak in unknown tongues 'gossalia' (Acts 2:4).
In 1906 the revival at Azusa Street, which was acknowledged by many scholars as the birth-place of Pentecosatlism; shared the similar experience of the early Church. The event at Azusa Street and the later series of separate revivals, led the Pentecostals to believe that it was the realization in the fulfillments of the last days predicaments; the outpouring of the Hoy Spirit (Joel 2:28, 29; empowerment to evangelize the world for Christ before the Judgment Day (Matt.24:14); and to prepare the Bride (Church) in holiness for the Wedding Day (Rev.19:7, 8).
Therefore, to be a Pentecostal is to hold on to the beliefs stated above. The Pentecostals emphasized greatly the 3rd Person of the trinity-the Holy Spirit. Baptism of the Holy Spirit allow the Spirit-filled Pentecostal to experience a spiritual purification and empowering for Christian witness. It is evidence by utterance in unknown tongues (gossalia). The Spirit-filled believers experienced the obvious manifestation of the Holy Spirit in their everyday life; including divine healing, prophecy, and tongues (gossalia).