" " is a book which is intended to bring back into the Christian church a teaching that has been languishing for about fifteen hundred years. This teaching is clearly taught in the New Testament and was taught by Christian teachers for a few centuries after the first century. However, with time it became obscured, especially in the western part of the universal church. Jesus asked the question, "When the Son of the Man returns, will He find the Faith on earth" (Luke 18:8). "The Faith" - that is, the Kerygma, the entire, iniitial body of teaching that the apostles and evangelist heralded to the world - included teaching about the Gift of the Holy Spirit. The author of this book has thoroughly studied what the early teachers of the Faith first taught to prospective believers and found that teaching about the Gift of the Holy Spirit was an integral part of the initial proclamation of the Christian Faith. Sadly, that teaching is often wholly lacking in the teaching of many Christian evangelists and teachers here in the 21st century. Actually, the teaching about the Gift of the Holy Spirit is extremely important, for it introduces the disciples of Jesus to the power that He wishes to impart to them through the Holy Spirit. That power is greatly diminished in the lives of disciples who have either fragmentary knowledge of it, faulty knowledge of it, or, possibly, no knowledge of it at all! A less powerful body of disciples is the price we pay for neglecting this teaching! This book is the author's attempt to begin to fill this void in Christian teaching.