In Matthew twelve it gives the account of the Pharisees telling Christ that he cast out devils by Beelzebub, so Christ told the Pharisees that speaking against the Holy Ghost would not be forgiven in this world or the world to come. Now, according to whatever circle you are in preachers give different interpretations of what sinning against the Holy Ghost is. I have heard preachers say to continue to resist the convicting of the Holy Spirit would lead to sinning against the Holy Ghost. Yesterday a preacher said if a person left the gospel, meaning the gospel which he preached, he had committed the sin against the Holy Ghost. I have always felt the scripture was plain enough in describing the sin which the Pharisees committed. They were accusing Christ of having a unclean spirit. Am I missing something here ? What is your interpretation ?