This is final book in the Essential Series. This series began for Tom's grandchildren to provide them with the needed information for a solid foundation in their faith. The Spirit Himself Beareth Witness will complete this foundation series. The Holy Spirit is God, equated with the Father, and the Son. He dwells within all who are born again. He is our Comforter, Counselor, Teacher, and Guide. He is the passkey to all the treasures of experiencing God.