Matthew 12:31-32 (KJV)
31 Wherefore I say unto you, All manner of sin and blasphemy shall be forgiven unto men: but the blasphemy against the Holy Ghost shall not be forgiven unto men.
32 And whosoever speaketh a word against the Son of man, it shall be forgiven him: but whosoever speaketh against the Holy Ghost, it shall not be forgiven him, neither in this world, neither in the world to come.
KEEP IN MIND: after Jesus cast devils from a man the pharisees attributed what Jesus done to the devil
Now we have to as ourselves a few questions:
Is God the Holy Ghost greater than God the Father? NO!
Is God the Holy Ghost greater than Jesus/God the Son? NO!
THE HOLY GHOST IS NOT GREATER BUT HE WAS....... LATER!!!!
IMO: Jesus was looking ahead and thinking about the coming of the Holy Ghost.
The Holy Ghost is God reaching as far as He will to save us. If men reject the conviction given by the Holy Ghost to repent God will do nothing else to save them.
IMO: Jesus knew they were going to crucify him and said if you treat the Holy Ghost the way your treating me, there will be no hope for you.......... so make sure you dont crucify the Holy Ghost and stay sensitive to Him