So pentecostalism has a lot of its doctrine around personal experience with the Holy Spirit, like speaking in tongues, hearing the Spirit's voice and so on...
I want to find a theological course/book/piece of media that explains those things from the Bible perspective, but I want a very well organized basis, like a theological foundation for it. Because whenever I try looking into it, either the material is very vague about the sources or is very personal-experience relied... Is there any course like that?