One often hears the term 'blasphemy against the Holy Spirit', particularly from the mouths of those within the Charismatic movement. Many non-Charismatics and Charismatics alike who persistently question various doctrines and practices considered by the Charismatic movement to be of God, are quite often confronted with the warning to take heed lest they be in danger of committing the unpardonable sin. This book presents a biblical examination of the term 'blasphemy against the Holy Spirit', and compares its use today with what the Lord Jesus Christ meant when He warned of the blasphemy against the Holy Spirit. It then shifts the spotlight onto the Charismatic movement itself: its claims of healings, miracles, prophecies and other signs, and most importantly its gospel, and poses the question, 'Is the Charismatic movement of God?'