What is the difference between basic blasphemy, and blasphemy against the Holy Spirit? In Pastor Armstrong's Revelation Lesson 10, he stated blasphemy against the Holy Spirit was the ultimate and unforgiveable sin. What is blasphemy if not just simply unbelief?
As you learned in our studies, blaspheming the Holy Spirit is a very specific national sin that only Israel could commit and only in the day Jesus came to them. For more information on that specific sin, please read: What is the unforgiveable sin?
The individual sin of blasphemy is completely different. Blasphemy is any word or deed that profanes the name or character of God:
Blasphemy is also contradicting or intentionally disobeying the word of God, diminishing His name or work, or making anything in the Creation to be equal to or greater than God himself:
Jesus was accused of blasphemy by Israel's religious leaders because Jesus equated Himself with God, though in Jesus' case it was not blasphemy because it was true.
Unbelief by itself is not an act of blasphemy. To disregard the call of Scripture to believe is not equated with blasphemy unless it includes one of the behaviors above. Furthermore, blasphemy is forgiven by the blood of Christ in all cases, just as any other sin is forgiven by placing faith in Jesus.