On the day of Pentecost the Holy Spirit was poured out on the disciples in a great demonstration of supernatural power (Acts 2:1-4). There was the sound of a violent wind, visible tongues of fire, speaking in tongues, and powerful evangelism which resulted in roughly 3000 people being saved that day (Acts 2:41) and many more being saved or healed after that (Acts 2:43). However, there was an earlier event...... If you recall, before Pentecost Jesus told the disciples that in a few days they would be "baptized" with the Holy Spirit: ""For John baptized with water, but in a few days you will be baptized with the Holy Spirit. ... you will receive power when the Holy Spirit comes on you; and you will be my witnesses in Jerusalem, and in all Judea and Samaria, and to the ends of the earth." After he said this, he was taken up before their very eyes, and a cloud hid him from their sight." (Acts 1:5, 8-9) Notice that immediately before Jesus ascended to heaven, He told the disciples that they will be baptized with the Holy Spirit in a few days. Now take a look at what Jesus said to the disciples on Resurrection Sunday (which was forty days earlier, according to Acts 1:3): "On the evening of that first day of the week [Resurrection Sunday], when the disciples were together, with the doors locked for fear of the Jews, Jesus came and stood among them and said, "Peace be with you!" After he said this, he showed them his hands and side. The disciples were overjoyed when they saw the Lord. Again Jesus said, "Peace be with you! As the Father has sent me, I am sending you." And with that he breathed on them and said, "Receive the Holy Spirit."" (John 20:19-22) The disciples received the Holy Spirit on the day that Jesus was resurrected, which was almost a month and a half before they were filled with the Holy Spirit at Pentecost! Why did the disciples have two separate experiences of the Holy Spirit like that?