Day 4--Read: Acts 2:1-4
When the day of Pentecost arrived, they were all together in one place. 2 And suddenly there came from heaven a sound like a mighty rushing wind, and it filled the entire house where they were sitting. 3 And divided tongues as of fire appeared to them and rested on each one of them. 4 And they were all filled with the Holy Spirit and began to speak in other tongues as the Spirit gave them utterance.
Reflect: What happened in these verses?
Consider: Pentecost means “fiftieth” because this feast was held fifty days after the Feast of Firstfruits (Lev. 23:15–22). The calendar of Jewish feasts in Leviticus 23 is an outline of the work of Jesus Christ. Passover pictures His death as the Lamb of God (John 1:29; 1 Cor. 5:7), and the Feast of Firstfruits pictures His resurrection from the dead (1 Cor. 15:20–23). Fifty days after Firstfruits is the Feast of Pentecost, which pictures the formation of the church. At Pentecost, the Jews celebrated the giving of the Law, but Christians celebrate it because of the giving of the Holy Spirit to the church.
Respond: What is most powerful sound you’ve ever heard? How does Luke describe the supernatural sound the believers heard on the Day of Pentecost? What is the most amazing sight you have ever seen? How does Luke describe the supernatural sight in verse 3? What do you think was the purpose of the sound of a violent rushing wind? What do you think was the purpose of the flames of fire resting on each other?
 Warren W. Wiersbe, The Bible Exposition Commentary, vol. 1 (Wheaton, IL: Victor Books, 1996), 407.