And those people are almost impossible to convince that that is the case.
I've run in Pentecostal circles for a number of years and there is a lot of their theology that is unscriptural but they know what they've experienced and you can't tell them otherwise.
For them experience trumps Scripture. They interpret Scripture in light of their experience instead of examining their experience in light of Scripture.
What ELSE would you expect?
Pentecostals came from Protestants which came from Catholics.
Lotsa common DNA in there!
Many have run in Catholics circles for a number of years and there is a lot of their theology that is unscriptural but they know what they've experienced and you can't tell them otherwise.