Following is from The Little White Book
(The event of Pentecost is described only in Luke's Acts of the Apostles.)
"When the time for Pentecost was fulfilled, they were all in one place
together. And suddenly there came from the sky a noise like a strong driving
wind, and it filled the entire house in which they were. Then there appeared to
them tongues like flames of fire, which parted and came to rest on each one of
them. And they were all filled with the Holy Spirit and began to speak in
different tongues, as the Spirit enabled them to proclaim." -(Acts 2:1-4)
Today is often called the birthday of the Church. Jesus laid the foundation of this Church, but after He ascended into heaven, we might not have lasted if the Holy Spirit had not come to be with us.
When you step back and look at the life of this Church - something often done on birthdays - you begin to appreciate the storms that this ship has ridden through and survived only because the Spirit lives with us.
Think of the early Church which knew confusion and uncertainty and dissension. But the Spirit was with them.
Think of those early centuries of persecution - how frightening that must have been. We have never seen a persecution.
Think about those early heresies. They didn't involve questions like Communion in the hand or the length of sisters' habits. They involved the most basic questions of our Creed - the divinity of Jesus, the nature of man. We have never lived through a real heresy.
Think of the fall of the Roman Empire, the barbarian invasions, the Dark Ages. Church offices were bought and sold. At one time, popes and bishops seem to be in the hands of princes and kings. One time three different popes claimed to the true pope. It must have been difficult to live in times like that. But the Holy Spirit was there.
Today we give thanks for the presence of the Spirit. Our hope and our trust and our security are not ultimately in the abilities of popes, bishops, priests. We are secure because the Spirit is with us.
Jesus does not give us a perfect Church - our sins and failures are always with us. But He gives us a Church that does not fall irretrievable into error and sinfulness.
That is enough.