In this episode, Jesus introduces us to the single most dangerous sin: blasphemy against the Holy Spirit. It is the most dangerous sin because it leads to all other sins, preventing someone from even hearing what God says—let alone responding to Him in repentance.
It should be an alarming thought that there is something we can do that will never be forgiven.
But that thing is perhaps not what we think. It isn't something violent, public, or physically destructive.
The blasphemy of the Holy Spirit is simply any claim that the Bible is not inspired.
Since the Holy Spirit spoke these words to the prophets and apostles of old, what they in turn wrote down was not their own speech but God's. When someone says the Bible is the product of human imagination, they make the Holy Spirit of God into a fallible human spirit.
We must remember, however, that the Bible makes faith (Romans 10:17). Someone who does not yet believe may come to believe upon reading the Bible and seeing there "the finger of God." Blasphemy is an active denial that this book is inspired, not merely an ignorance of it.
Scholars provide the following additional readings, but we will not cover them since they are from different episodes.
- Matthew 7:16–20; Luke 6:43–45
- Luke 12:10