This past Sunday the Church celebrated the culmination of the great fifty days, the conclusion of the Easter season, the outpouring of the promise of the Father, the baptism with the Holy Spirit, and the birth of the Church. - John the Baptizer had declared concerning Jesus, "I baptize you with water; but one who is more powerful than I is coming; I am not worthy to untie the thong of his sandals. He will baptize you with the Holy Spirit and fire" (Luke 3:16, NRSV).
Jesus assured the disciples that it would be to their advantage that He would ascend to the Father, because, in doing so, He would send the Holy Spirit (the Advocate/Comforter/Counselor/Helper - parakletos ) to them (John 16:7). The Holy Spirit would teach them everything and remind them of all that Jesus had said to them (14:26), and the Holy Spirit would "prove the world wrong about sin and righteousness and judgement (16:8).
Further, Jesus told the apostles, "But you will receive power when the Holy Spirit has come upon you; and you will be my witnesses in Jerusalem, in all Judea and Samaria, and to the ends of the earth" (Acts 1:8, NRSV).
On the Day of Pentecost, the disciples saw the fulfillment of the promised outpouring of the Holy Spirit as told by John the Baptizer and the Lord Jesus, as well as the prophet Joel.
It is that same outpouring of the Holy Spirit that we enter into by faith and through our baptism, for St. Paul declares, "For in the one Spirit we were all baptized into one body . . ." (1 Cor. 12:13, NRSV).*
Pentecost is one of the major feast days of the Church, and it should be a great day of celebration for those of us in the Wesleyan/Holiness tradition. - I recall a conversation a number of years back with a Presbyterian (USA) pastor. He confessed, he really didn't know what to do with Pentecost. Now, I do not mean to imply that such is the case for all, or even a majority of Presbyterians. I don't know. However, Nazarenes, whether espousing a 19th century or a classical Wesleyan view (cf. footnote, below) ought to have no problem knowing how to celebrate Pentecost Sunday.
You see, one of the main benefits of Pentecost and the outpouring of the Holy Spirit is the possibility of having our hearts cleansed of sin. - As the prophet Ezekiel foretold, there was coming a day when God would ". . . sprinkle clean water upon you, and you shall be clean from all your uncleanness, and from all your idols I will cleanse you. A new heart I will give you, and a new spirit I will put within you; and I will remove from your body the heart of stone and give you a heart of flesh. I will put my spirit within you, and make you follow my statures and be careful to observe my ordinances" (Ezek. 36:25-27, NRSV). And St. Peter, referring to the outpouring of the Holy Spirit upon the gentiles, argued, "And God, who knows the human heart, testified to them by giving them the Holy Spirit, just as he did to us; and in cleansing their hearts by faith he has made no distinction between them and us" (Acts 15:8-9).
It is this heart cleansing that has been at the heart (no pun intended!) of the Wesleyan & Methodist movement, and especially so for the Holiness branches of Methodism. It has been referred to by Wesley in connection with the Biblical doctrines of Entire Sanctification and Christian Perfection. In fact, the spread of scriptural holiness throughout the land was the stated purpose of Methodism, first by John Wesley in London in 1733, and then in America, at the famous Christmas Conference in Baltimore in 1784 at the founding of the Methodist Episcopal Church. It was the commitment to this purpose that gave rise to the 19th century Holiness Movement within Methodism. And Phineas Bresee said of the Church of the Nazarene, that it is ". . . a part of that body of believers raised up to spread sanctified holiness over these lands, and thus that we are a part of that company who are the real successors of John Wesley and the early Methodists" (Nazarene Messenger, July 15, 1909).
And so, we Wesleyan Christians have special reasons for joining with our sisters and brother in Christ around the world to rejoice and give thanks to God on Pentecost Sunday for the outpouring of the Holy Spirit as we seek to worship God in Spirit and in Truth.
*At this point, those within the Holiness movement will recognize that I take my stand with John Wesley, the Church of history, and those in the classical Wesleyan theological tradition, rather than those who are more consistent with 19th century interpretations. Those debates within the Holiness Movement can be seen in The Wesleyan Theological Journal between 1973 and 1982. Mark Quanstrom discusses it in A Century of Holiness Theology: The Doctrine of Entire Sanctification in the Church of the Nazarene, 1905-2004, though his bias toward the 19th century view is apparent in his, not always completely accurate portrayal of members of "The Trevecca Connection."