"The central role of the power of the Holy Spirit was a key factor to the growth of the Evangelical Churches of the Puritan era. This shouldn’t surprise us when we consider that Paul himself said, ‘My message and my preaching were not with wise and persuasive words, but with a demonstration of the Spirit’s power, so that your faith might not rest on men’s wisdom, but on God’s power.’ (1 Cor 2:4-5 NIV)I appreciate that to some degree it really depends what is meant by pentecostalism or charismatcism or continuationism etc. Among the many things appreciate about the Puritans (as you'd expect from The Valley of Vision) is that they were deeply concerned about the Word, the Spirit and the the gospel effecting their affections.
The power of the working of the Holy Spirit has always been God’s means of authenticating His gospel to the hearts of those who hear. What is truly amazing for anyone who examines the statements of those who witnessed the immense popularity of the ‘new’ puritan movement is the similarity of the scenes with – wait for it – early Salvationism, or early Pentecostalism...."
A biblical vision of the Spirit's work from 1 Cor 2 and 12-14 is nothing to be afraid of - it's gospel-centred, heart-changing and church-building.