Birthdays are a wonderful occasion to celebrate and go back to who we truly are, our beginnings and our own unique mission. However messy and crazy our lives have been, despite all the mistakes and failures we have made, birthdays reminds us that life is precious, we are good and God love us so much. A birthday, therefore, is an important and momentous occasion to celebrate, reflect and give thanks.
Today, on Pentecost Sunday, we celebrate the birthday of the Church. Pentecost Sunday reminds us of the foundation the church–the life, passion, death and resurrection of Jesus Christ. We commemorate on Pentecost the formal inauguration of the church through the coming down of the Holy Spirit upon the apostles likes balls of fire. Immediately the spirit-empowered apostles went out of their room into the city square and were on fire in proclaiming the good news. The birthday of the church were spent not inside the church but in the streets, going out to the people, speaking their language that they too may discover the spirit of God actively moving them towards fullness of life in Jesus. Indeed, the birthday of the church depicts a church-in-mission.
The Holy Spirit re-created the disciples. The disciples became bold and daring. Compare the apostles before and after Pentecost, oh what a difference the Spirit makes! From timid they became bold, from lethargic they became energetic and from fearful they became courageous – all for the sake of the good news of Jesus.
Pentecost reminds us of that our true identity as church is that we are Spirit led. The church is not ultimately led by the Pope, the bishops and the hierarchy of the church. It is the Holy Spirit–sent by the Father and the Son–who leads the church in every generation in its ministry of proclaiming and living the good news of the Kingdom of God.
It is, therefore, fitting and opportune, on this day of Pentecost to reflect on our identity as a Spirit-led Church. American Professor of Theology, Roger Olson, shares some thoughts of what a Spirit-led Church is:
A Spirit-filled and Spirit-led church will be alive, “crackling” with energy and passion, without fanatical extremism that focuses attention on ecstatic experiences rather than on the grace and glory of God revealed in Jesus Christ. Its people will come to worship and other meetings with excited expectation and not out of a sense of duty or with unhealthy fear. In a truly Spirit-filled and Spirit-led church visitors will come to see what God is doing among them. They will testify that “God is busy” (Hauerwas) there. Lives will be transformed in noticeable ways.
Such a church will be open to the “sovereign unpredictability of the Spirit” (Du Plessis) even as it celebrates tradition. This requires risk on the part leadership; leadership will leave space for the Spirit to move and work in ways that transcend traditional forms.
Such a church will lay all decisions before God for guidance and direction and move only through consensus of the spiritually mature people of God within the church. It will not be led by a dictatorial individual or small group that serves his, her or their interests.
Finally, such a church will be outwardly-focused with a strong sense of participation in the mission of God in the world. It will expend much of its energy and resources on meeting the spiritual and material needs of the communities outside the church. 
Today the Spirit continues to lead us, the church, to guide us, to shake us out of our complacencies, to disturb us out of our passiveness, to empower us to speak the language of today in proclaiming the gospel of Jesus. But do we listen? Are we like the early church who always sought the direction of the Holy Spirit, who discerned always where the movement of the Holy Spirit in their lives and work?
In today’s chaotic, hostile and terror stricken world, the temptation for the church is to freeze in fear and be content solely with its own security and self-preservation. Worst is to rely more on our human capacity and wisdom rather than on the surprises and creativity of the Holy Spirit. This is not the church of Pentecost. Pope Francis has said about the church of Pentecost,
“She is a Church that doesn’t hesitate to go out, meet people, proclaim the message that’s been entrusted to her, even if that message disturbs or unsettles the conscience.”
Despite all its craziness and messiness, God will re-create the world through the Holy Spirit. “Behold, I am making all things new.” (Isaiah 43:18, Isaiah 43:19, Revelation 21:5, Isaiah 65:17, Ephesians 2: 15). We have in need more now of the inspiration of the Holy Spirit. We need a new Pentecost, as St. John XXIII prayed in preparation for the Second Vatican Council in 1962, “Renew Your wonders, O God, in our day — as in a new Pentecost!”
Let us celebrate the birthday of the church today by being fully open to the promptings of the Spirit. Let us ask the Holy Spirit, to recreate us once again so that we may become creative and brave in proclaiming the gospel in every language, in every avenue of communication, in every culture and in every situation we find ourselves today.
“Come Holy Spirit, fill the hearts of your faithful and kindle in them the fire of your love. Send forth your Spirit and they shall be created. And You shall renew the face of the earth.”
 Roger Olson, What Is a “Spirit-filled” and “Spirit-led” Church? Pantheos.com. October 23, 2014. Accessed at https://www.patheos.com/blogs/rogereolson/2014/10/what-is-a-spirit-filled-and-spirit-led-church/