The twentieth century saw the advent of the Pentecostal movement, whose emphasis on glossalalia and other spiritual gifts have shaken Western Christendom. The later Charismatic movement that branched off from Pentecostalism touched every Christian sect. In the wake of this situation, Fr. Alexis aims to examine the Biblical passages about speaking in tongues to see if there is any merit to the interpretation given by Pentecostalists and Charismatics. The end result of his labour is an interesting interpretation of tongues in a very Orthodox perspective. Sometimes, Fr. Alexis seems to stretch his argument a bit, but I overall enjoyed the book. For anyone interested in both Orthodoxy and the phenomenon of glossalalia, I recommend this book.