In his (John MacArthur) book, Strange fire, MacArthur asks those who are part of Charismatic churches to ask themselves these questions:
1. Why does the modern version of speaking in tongues parallel pagan worship practices? (This came in the context of him quoting an orthodox priest who queried that, "If the possessed voodoo priest says: 'shiri-bo-bo-bo-boh' in a staccato stammer over his black whisk he holds, and the possessed Christian born-again Christian rattles: 'shla-ba-ba-bah-shlabalika' over his Bible, what can be the difference.")
2. How can a God of order be honored by confusion and disarray? (This question comes in the context of given an account of an event that happened in a pentecostal prayer meeting in which a "Spirit-filled" woman fell down in ecstasy and knocked over a boy who was speaking in tongues. After crashing into the pews, the boy got up, nursing a bloody lip, and lamented, 'Oh why?' in his own native language). How can the Spirit be responsible for this kind of mayhem.
I am currently reading Strange fire in the hope of reviewing it. Whilst reading it I will continue to ask questions that the author raises to those who are Pentecostal/charismatic.