Mark 3: 28 – 30 28"Truly I say to you, all sins shall be forgiven the sons of men, and whatever blasphemies they utter; 29but whoever blasphemes against the Holy Spirit never has forgiveness, but is guilty of an eternal sin"-- 30because they were saying, "He has an unclean spirit."
Jesus exposes here what the scribes were really saying. That He was the devil. The unforgiveable sin is the rejection of the work of the Holy Spirit as He bears testimony of the Savior Jesus Christ.
John 16:7-10 tells us that the Holy Spirit came to help us. To live inside of us. An unlimited, internal influence. He brings conviction of sin and our need for a Savior to us.
There is one reason and one reason only that people perish in Hell, and that’s because they don’t believe in Jesus’ work of salvation. The unforgiveable sin is rejecting the Holy Spirit’s prompting and therefore rejecting Jesus.
John 3:18 18"He who believes in Him is not judged; he who does not believe has been judged already, because he has not believed in the name of the only begotten Son of God.”
As Christians we can take great comfort in the first part of this passage. That ALL sins shall be forgiven believers!