The Unforgiven Sin

When a person is faced with the identity of the King of the Kingdom of God, they are faced with a choice for which they will be held accountable: either be against Him, or become His disciple. There is no neutral territory. The Pharisees were confronted with the miracles of Jesus, and they knew that He was sent from God, but they attributed His works to Satan anyway. Once a person crosses this line, God chooses to not extend grace to forgive that sin, either in this age or in the age to come.