You utter mysteries to God when you pray in tongues. This book answers questions about tongues comprehensively, taking you through evidence in the Old Testament, New Testament, and church history from the second century through to the twentieth century. It brings new understandings to many aspects of tongues: (1) tongues may be spoken in public and not just in private; (2) prophecy tongues are humanly comprehensible; (3) prayer tongues are encrypted languages for communicating mysteries to God; and (4) there are counterfeit tongues enabled by evil spirit baptism. It also presents the spiritual benefits of tongues speaking, Holy Spirit baptism requirements, and the challenges after becoming Holy Spirit baptized. "This book is impressively thorough, biblical, and clear. It addressed most questions I have, and done so credibly." "Cheryl Dunlop, Christian Writers Institute "This book will dispel the fear and doubt that keeps you from venturing into the arena of Holy Spirit powered service to God." "Rev. Dr. Aaron Ami-Narh, The Apostolic Church, Ghana "This is one of the most comprehensive pieces on the subject of speaking in tongues. You will not be the same after going through this excellent work. You must consume this book." "Pastor Peprah Agyeman Duah, The Apostolic Church, USA "This book is bold, brilliant and balanced, especially on a topic which seems controversial to many. This splendid work is a required reading for Christians at all levels." "Pastor Augustus Martey Asemnor, Church of Pentecost, USA