What
 a wondrous and challenging feast we celebrate at Pentecost. A feast 
like this challenges us, because it puts to the lie a lazy, sleepy, 
hidden, and tepid Christian life. The Lord Jesus had said to Apostles, 
and still says to us: I have come to cast a fire on the earth! 
(Luke 12:49). This is a feast about fire, about a transformative, 
refining, and purifying fire that the Lord wants to kindle in us and in 
this world.
The Readings today speak to us of the Holy Spirit in three ways: The Portraits of the Spirit, the Proclamation of the Spirit and the Propagation by the Spirit. Let’s look at all three.
I. The Portraits of the Spirit
 – The Reading today speaks of the Holy Spirit using two images: rushing
 wind, and tongues of fire. These two images recall Psalm 50 which says,
 Our God comes, he does not keep silence, before him is a devouring fire, round about him a mighty tempest. (Psalm 50:3).
Rushing Wind – Notice how the text from Acts opens: 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. 
This text brings us to the very root meaning of the word “Spirit.”
 For “spirit” refers to “breath,” and we have this preserved in our word
 “respiration,” which means breathing. So, the Spirit of God is the 
breath of God, the Ruah Adonai (the Spirit, the breath of God).
Genesis 1:2 speaks of this saying the Spirit of God was moving over the face of the waters. And Genesis 2:7 speaks even more remarkably of something God did only for man, not the animals: then
 the LORD God formed man of dust from the ground, and breathed into his 
nostrils the breath of life; and man became a living soul (Gen 2:7).
So the very Spirit of God was breathed into Adam! But, as we know, Adam lost this gift and died spiritually when he sinned.
Thus we see in this passage from Acts an amazing and wonderful resuscitation of the human person
 as these first Christians (120 in all) experience the rushing wind of 
God’s Spirit breathing spiritual life back into them. God does C.P.R. 
and brings humanity, dead in sin, back to life! The Holy Spirit comes to
 dwell in us once again as in a temple (cf 1 Cor 3:16). It has been said that Christmas is the feast of God with us, Good Friday is the Feast of God for us, but Pentecost is the Feast of God in us.
Tongues of Fire – The text from Acts says, Then there appeared to them tongues as of fire, which parted and came to rest on each one of them. 
The Bible often 
speaks of God as fire, or in fiery terms. Moses saw God as a burning 
bush. God led the people out of Egypt through the desert as a pillar of 
fire. Moses went up on to a fiery Mt. Sinai where God was. Psalm 97 
says, The LORD reigns; let the earth rejoice; let the many 
coastlands be glad! Clouds and thick darkness are round about him; 
righteousness and justice are the foundation of his throne. Fire goes 
before him, and burns up his adversaries round about. His lightnings 
lighten the world; the earth sees and trembles. The mountains melt like 
wax before the LORD, before the Lord of all the earth. The heavens 
proclaim his righteousness; and all the peoples behold his glory. 
(Ps 97:1-6). Scriptures call God a Holy fire, a consuming fire (cf Heb 
12:29) and a refining fire (cf Is. 48:10; Jer 9:7; Zec 13:9; & Mal 
3:3).
And so it is that 
our God, who is a Holy Fire, comes to dwell in us through his Holy 
Spirit. And as a Holy Fire, He refines us by burning away our sins and 
purifying us. As Job once said, But he knows the way that I take; when he has tested me, I will come forth as gold (Job 23:10).
And he is also 
preparing us for judgement, for if God is a Holy Fire, then who may 
endure the day of his coming or of our going to Him? What can endure the
 presence of Fire Himself? Only that which is already fire. Thus we must
 be set afire by God’s love.
So, in the coming of
 the Holy Spirit God sets us on fire to make us a kind of fire. In so 
doing, he purifies and prepares us to meet him one, He who is a Holy 
Fire.
II. The Proclamation of the Spirit. -
 You will notice that the Spirit Came on them like “tongues” of Fire. 
And the reference to tongues is no mere accident. For notice how the 
Holy Spirit moves them to speak, and ultimately to witness. The text 
says: And they were all filled with the Holy Spirit and 
began to speak in different tongues, as the Spirit enabled them to 
proclaim. Now there were devout Jews from every nation under heaven 
staying in Jerusalem. At this sound, they gathered in a large crowd, but
 they were confused because each one heard them speaking in his own 
language. They were astounded, and in amazement they asked, “Are not all
 these people who are speaking Galileans? Then how does each of us hear 
them in his native language? We are Parthians, Medes, and Elamites, 
inhabitants of Mesopotamia, Judea and Cappadocia, Pontus and Asia, 
Phrygia and Pamphylia, Egypt and the districts of Libya near Cyrene, as 
well as travelers from Rome, both Jews and converts to Judaism, Cretans 
and Arabs, yet we hear them speaking in our own tongues of the mighty 
acts of God.”
So behold how the 
Holy Spirit moves them to proclaim, not just in the safety of the upper 
room, but also in holy boldness before the crowds who have gathered.
Notice the transformation!
 Moments ago these were frightened men who gathered only behind locked 
doors, in secrecy. They were huddled together in fear. But now they go 
forth to the crowds and boldly proclaim Christ. They have gone from fear
 to faith, from cowardice to courage, from terror to testimony!
And how about us?
 Too many Christians are silent, dominated by fear. Perhaps they fear 
being called names, or not being popular. Perhaps they are anxious about
 being laughed at, or resisted, or of being asked questions they don’t 
feel capable of answering. Some Christians are able to gather in the 
“upper room” of the parish and be active, even be leaders. But once 
outside the “upper room” they slip into undercover mode. They become 
secret agent Christians.
Well, the Holy Spirit wants to change that,
 and to the degree that we have really met Jesus Christ and experienced 
his Holy Spirit we are less “able” to keep silent. An old Gospel song 
says, I thought I wasn’t gonna testify, but I couldn’t keep it to myself, what the Lord has done for me.
 The Holy Spirit, if authentically received, wants to give us zeal and 
joy, and burn away our fear, so that testifying and witnessing are 
natural to us.
Note also how the Spirit “translates” for the apostles,
 for the crowd before them spoke different languages, but all heard 
Peter and the others in their own language. The Spirit therefore assists
 not only us, but also those who hear us. My testimony is not dependent 
only on my eloquence, but also on the grace of the Holy Spirit who casts
 out deafness and opens hearts. Every Christian should remember this. 
Some of our most doubtful encounters with others can still bear great 
fruit on account of the work of the Holy Spirit who “translates” for us 
and overcomes many obstacles that we might think insurmountable.
III. The Propagation by the Spirit – In the great commission the Lord said, Go,
 therefore, and make disciples of all nations, baptizing them in the 
name of the Father, and of the Son, and of the Holy Spirit, teaching 
them to observe all that I have commanded you. And behold, I am with you
 always, until the end of the age (Matt 28:19ff). He also said, as we have noted, I have come to cast a fire on the earth and How I wish the blaze were already ignited (Luke 12:49).
But how is the Lord going to do this?
 
Perhaps a picture will help. My parish church is dedicated to the Holy Spirit under the title: Holy Comforter. Above the high altar is the Latin inscription: Spiritus Domini, replevit orbem terrarum (The Spirit of the Lord, filled the orb of the earth). (See photo, above right, of our high altar).
And yet, we may wonder how He will do this.
But the walls of my parish Church answer the question.
 The clerestory walls are painted Spanish Red, and upon this great 
canvas are also painted the lives of 20 saints, surrounding us like a 
great cloud of witnesses (cf Heb 12:1). (See also, video below). And over the head of every saint is a tongue of fire.
THIS is how the Spirit of the Lord fills the earth.
 It is not “magic fairy dust,” it is in the fiery transformation of 
every Christian, going forth into the world to bring light and warmth to
 a dark and cold world. THIS is how the Lord casts fire on earth, THIS is how the Spirit of the Lord fills the orb of the earth: in the lives of saints, and, if you are prepared to accept it, in YOU.
In the end, the Great Commission (Matt 28) is “standing order No. 1.”
 No matter what else, we are supposed to do this. Parishes do not 
deserve to exist if they do not do this. We as individual Christians are
 a disgrace, and not worthy of the name, if we fail to win souls for 
Jesus Christ. The Spirit of the Lord is going to fill the orb of the 
earth, but only through us. The spread of the Gospel has been placed in 
your hands (scary isn’t it?).
In the Past two years, my own parish,
 after a year of training, stepped out into our neighborhood, and went 
door to door and into the local park. And we announced Jesus Christ, and
 invited people to discover him in our parish, and in the sacraments. 
And we were in the local park and the market last week doing sidewalk 
evangelization.
Before we count even
 a single convert, this is already success because we are obeying Jesus 
Christ who said, simply, “Go!” “Go make disciples.” And, truth be told, 
we ARE seeing an increase in my parish. Our Sunday attendance 
has grown from about 450 to 520, a 15% increase. We are growing, and our
 attendance, while average for a downtown city parish, is going in the 
right direction. God never fails. God is faithful.
Spread the news: it
 works if you work it, so work it because God is worth it. Go make 
disciples. Ignore what the pollsters tell you about a declining Church 
and let the Lord cast a fire on the earth through you! Fires have way of
 spreading! Why not start one today? The Spirit of God will not 
disappoint.
I know this, my parish has a future because we are obeying Jesus Christ,
 we are making disciples. How about you and yours? If parishes do not 
obey, they do not deserve to exist and can expect to close one day, no 
matter how big they are today. I, in my short 50 years on this planet, 
have seen it: parishes once big, booming, and, (frankly), arrogant, are 
now declining and some are near closure. It happens to the best, if they
 do not evangelize, if they do not accomplish “Job 1.” The Lord wants to
 light a fire. Why not become totally fire? Let the Spirit propagate the
 Church through you (I am not talking about the person next to you, I am
 talking to you).
Happy feast of Pentecost. But don’t 
forget that the basic image is very challenging, for it means getting 
out of the “upper room,” opening the doors, and proclaiming Christ to 
the world. Let the Holy Spirit light a fire in you, and then, you can’t 
help but spread light and heat to a cold and dark world.
Let the evangelization of the whole world begin with you.
This video features details from the clerestory (upper window level) 
of my parish of Holy Comforter here in DC. Notice the tongue of fire 
above each saint. The paintings show how the Spirit of the Lord fills 
the orb of the earth, (see photo above), through the lives of the lives 
of the saints (this means you). It is not magic, it is grace, working in
 your life, through your gifts, and your relationships, that the Lord 
will reach each soul. The cloud of witnesses on the walls of my Church 
say simply, You are the way he will fill the earth and set it on fire. Let the blaze be ignited in you!