Before you is a book whose appearance many Christians have long awaited. It is written excitingly, without any “bureaucracy” and is as easy to read as a good adventure book. Here is the adventure of the doctrine of speaking in tongues. From the first to the last page the reader's interest remains constant. Rendal writes in such a way that the reader forgets that he is reading a serious biblical course, deep and related to a phenomenon that is explored from all sides. This book will not leave anyone indifferent, it will help all Protestant, Evangelical, Pentecostal and Charismatic churches that exist across the ocean of subjectivity. Following an individual path, he objectively examines speaking in tongues, and strictly forbade himself to go beyond the scope of this topic, so as not to mislead the reader. The strength of this book lies in the voluntary limitation to which the author forced himself. This book takes an unequivocal position in relation to a phenomenon that is both relevant and controversial. Professors and students of biblical institutes and departments will find in this book new thoughts and a solid argument developed that seems irrefutable. The thick fog that shrouded this topic is cleared and, finally, everything is now seen more clearly, as he announced with a loud voice what many were thinking! This book contains some kind of spiritual dynamite, and this information is received with a pure and sincere heart , can, through the power of the Holy Spirit, lead to the renewal and strengthening of the spiritual foundation of more Christians. - This is our prayer. There is only one thing we can regret: that this book was not written and published at least thirty years earlier. But here, too, popular wisdom is probably right, which is sometimes compared to the voice of God, saying that “UNTIL THE TRUTH IS HAPPENED, UNTRUETH WILL GO AWAY FROM THE WHOLE WORLD.” Let us do everything possible on our part for the glory of God, and He will do whatever pleases Him!