Introduction
  Remind of Acts’ purpose:  the BRIDGE explaining the transitions between the gospels and the rest of the  New Testament.
  Remind of Acts’ theme (1:8): a mandate and a promise
  
    He gave them a mandate:  “Take the gospel to the whole world.”   They must have been intimidated by this.   They were small in number (120), surrounded by hostile people,  and unsuited for cross-cultural work  (untravelled; language limitations).
    But Jesus was not leaving them alone.  Along with this mandate, he made them a  tremendous promise: “The Holy Spirit  will empower you to fulfill this mandate.”   This is why Jesus told them to wait until he was given (1:4,5).
  
  >> Chapter 2 records the birth of the church as the  dramatic first fulfillment of this theme...
The Event
  Read vs 1-4.  The group  of 120 were together, either in a large home or (more probably) at Solomon’s  portico--when Jesus poured out his Spirit on them in a dramatic way (wind  noise, fire light, and tongues).
  
    Some Christians single out one of these dramatic manifestations  (tongues) as something that all Christians must experience to prove they have  received the Holy Spirit.  (I don’t know  why they leave out the fire and wind!)   If we read on, it will become clear that God granted them this  experience primarily for a different reason...
  
  Read vs 5-13.  There are  several things we need to notice to understand the significance of these  tongues.
  
    These “tongues” were not ecstatic utterances or angelic  languages, but contemporary human languages which they had never learned.  Imagine turning to your friend after this  meeting and asking, “How’d you like the teaching?”--only to hear yourself say  this in Swahili?  And your friend  replies, “Why are you talking in a different language?”--only he says this in  German!  Something like this happened to  them.  They suddenly began to speak in  human languages they had never learned.
    Why did God enable them to do this?  Because Jerusalem was full of Jewish pilgrims  from all over the Roman Empire.  As many  as one million pilgrims visited Jerusalem for the spring festivals (Passover  through Pentecost).  While these people  all spoke a common language (Greek), they spoke different native languages  (vs6,8,11).
    
      Imagine them gathered at the Temple to celebrate Pentecost when  all of a sudden they hear these folks speaking in their own native  languages!  If you’ve ever been in a  restaurant or an airport in a foreign country, you know how easy it is to hear  someone speaking English even in a crowd.   They were naturally drawn toward the ones who spoke their native  languages.
    
    As they listened, they realized this was a miracle for two  reasons.  First, the people speaking were  home-grown Galilean Jews (vs 7,8) who didn’t know foreign languages (and even  spoke Greek with a twang).  Second, the  content of their speech was about “the mighty deeds of God” (vs 11), probably  referring to the death and resurrection of Jesus.  Though some (probably Judean Jews who didn’t  speak foreign languages) thought it was the gibberish of drunks (vs 13), these  pilgrims knew they were experiencing a sign from God, and sought an explanation  of its significance.  In the following  verses (which we’ll study next week), Peter explained to them that this event  signalled the gift of the Holy Spirit and proved that their Messiah had come.
  
The Result
  >> The results of this event were a truly amazing  fulfillment of Jesus’ promise in 1:8.
  3000 of the pilgrims responded by believing in Jesus as their  Messiah (vs 41).  So this little gaggle  of 120 people grew by 25 times in one day!
  Though these 3000 stayed in Jerusalem longer than they had  planned (in order to get grounded), most of them eventually returned home,  taking the message of Jesus with them all over the known world!  (Early church tradition states that the  church in Rome was started by these people.)
  The tongues also provided a basis for later validating Gentile  evangelization, as we will see in chapters 10,11.
  >> What a fitting way for Jesus Christ to begin the  church!  What a marvelous picture of our  mission--his people sharing his message by the power of his Spirit to people  all over the world!
  >> So what??   What can we learn from this event that will help us in our spiritual  lives?  If we understand it in light of  the rest of the Bible, there are two important  applications...
God validates Jesus as the Messiah through fulfilled Old  Testament prophecy
>> Notice that this all happened on “the day of  Pentecost” (vs 1). Why did Jesus wait until this day to give them the Holy  Spirit?  Why did he wait ten days after  he was glorified (Jn.7:39; Acts2:33)?  The Jewish pilgrims were in Jerusalem for the  entire period from Passover.
    
  The answer to this question is that God was fulfilling Old Testament  prophecy.  Not predictive prophecy like  over 300 specific Old Testament predictions such as the Messiah’s birthplace  and the specific time and manner of his death.   But typological prophecy: Old Testament festivals and rituals which  foreshadowed the coming of the Messiah (Col.2:16,17).  Pentecost was the last of three spring  festivals (Lev.23:1-21) that foreshadowed both the content and chronology of  Jesus’ work of salvation.
  PASSOVER
  
    DATE: 14th day of first month (late March/early April)
    PURPOSE: Passover commemorated God’s deliverance of the Jews from  Egypt through the symbolic ritual he prescribed (EXPLAIN).  God commanded the Jews to offer sacrifices in  Jerusalem once they got the land (Deut.16:5,6).
    FULFILLMENT: Jesus was the Passover lamb whose blood (death) delivers us from God’s judgment  (Jn.1:29).  This is why he was  adamant about being in Jerusalem for Passover.   This is why he was crucified on Passover, and why he died in the  afternoon--the very time the priests were offering the lambs for the  nation!  No wonder Paul says  1Cor.5:7!
  
  FIRST-FRUITS
  
    DATE: Sunday following Passover
    PURPOSE: This festival celebrated God’s faithful agricultural  provision by bringing the first tangible evidence (NEW BARLEY SHEAVES).
    FULFILLMENT: Why did Jesus say that he must be raised from the  dead “on the third day?”  Why not the second or fourth?  Because the third day (reckoned inclusively)  was the feast of First-fruits.  As the  Jewish people were thanking God for the proof of a future harvest, God raised  Jesus from the dead--thereby providing proof of our resurrection if we have  trust Christ.  No wonder Paul says  1Cor.15:23!
  
  PENTECOST
  
    DATE: 50 days after Passover sabbath
    PURPOSE: The feast of Weeks, or Pentecost, celebrated the  beginning of the grain harvest by bringing bread made from this grain.
    FULFILLMENT: Why did Jesus wait until the day of Pentecost to  give the Holy Spirit to his followers?   As the Jewish people were thanking God for the actual beginning of  harvest, Jesus poured out his Spirit on his followers to empower them to begin  the harvest of souls (Acts2:41)!
  
  >> This is just one example of hundreds of Old  Testament prophecies Jesus fulfilled (see Christianity,  The Faith That Makes Sense).  Through  them, God provides you with a unique line of evidence that Jesus is your  Messiah and Savior, that his death is God’s payment for your sins, that his  resurrection assures you of eternal life, and that his Spirit wants to indwell  you and give you a personal, life-transforming   relationship with God--if you  choose to receive Christ.
Jesus’ sovereignty & evangelism
  There is another lesson from this passage.  Read Matt. 28:18.  As a result of his death and resurrection, he  has been given full authority over both human and angelic realms.
  
    This assertion is perplexing for many Christians.  If Jesus is sovereign over all things, why do  we still get sick?  Why do we still have  war?  Why doesn’t he answer our prayers  for these things?
    We don’t have the full answer to these questions, but we have a  sufficient answer.  Jesus will defeat  these things when he returns to reign on earth as God’s anointed King.  In the meantime, he exercises his sovereignty  primarily for a different purpose--to fulfill his Great Commission (read Matt.  28:19a: “...go  therefore...”).   In this age, he normally reveals his sovereignty, not by overruling our  negative circumstances, but by working through all our circumstances to provide  opportunities for us to share the gospel.
    Isn’t this what happened on the day of Pentecost?  Jesus didn’t remove all opposition and  difficulty--these things continued and increased, as we will see.  But he did sovereignly work within their  circumstances to provide a tremendous opportunity for them to be his witnesses.
  
  This is one of the secrets of the early church’s success--but  it is an open secret that we can share.  If  you are committed to reaching out to others with Jesus’ love and message of  forgiveness, he will sovereignly work to provide you with opportunities to  share.  
  
    Sometimes he does this in obvious, dramatic ways that are  almost impossible to miss  (PENTECOST; RODEO  ROB).
    Sometimes he does this in subtle ways (and through difficult circumstances)  that require our attentiveness (“SCATTERING” IN ACTS 8,11; PAUL WITH GUARDS).
    This can transform your prayer life.  If you pray primarily for the Lord to keep  you healthy, prevent you from suffering, and give you good circumstances,  you’re going to be disappointed in his response. But if you pray that he give  you opportunities to share with others, you will see him answer in the most  amazing ways and even in the most difficult circumstances.  Nothing is more exciting than this!
  
Conclusion
  NEXT WEEK: how to share the gospel when Christ provides the  opportunity...