I found a video on the NBC News website that spoke of the rapid spread of Pentecostalism around the world.  It reported on the the impact of the movement and even showed people speaking in tongues.  Their website does not have the ability to embed video into blogs (supposedly they will have the ability in the future) so I am unable to do so, but I encourage you to search their site to view the video. 

It is no surprise to me that the Pentecostal movement is sweeping the world like a fire for the Word states:

Act 2:16 But this is that which was spoken by the prophet Joel;

Act 2:17 And it shall come to pass in the last days, saith God, I will pour out of my Spirit upon all flesh...

When I see these videos or read the news accounts of the impact that the Pentecostals are having on this world, I become inspired to continue to preach the truth found in the Bible.  I become more determined to tell others of God's Word knowing that it is what people are looking for and need.  The Word becomes like the prophet so beautifully illustrates for us:

Jeremiah 20:9 ...But his word was in mine heart as a burning fire shut up in my bones...

Pentecostalism is not a religion.  It is an experience.  Religion does not change people, but an experience with God is life altering.   People are healed of cancer and delivered from drugs and alcohol.  Lives are forever changed by the power of the Holy Ghost.  That is the key to the growth of the Pentecostal church.  It is not a mystery and in the book of Acts when the disciples where asked by convicted men what they must do, his reply was simple:

Acts 2:38 Then Peter said unto them, Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sins, and ye shall receive the gift of the Holy Ghost.