Pentecostalism did not begin at the turn of the century on Azusa, but 2,000 years ago in an upper room.
A.W. Tozer said, "The Great Commission is not the first call to the church." Tozer reminds us that Jesus first told His disciples to go to Jerusalem and tarry there until they were endued with power from on high.
Jesus had no desire for them to do the work of God until they had a powerful encounter with Him. (Luke 24:49).