If we are to understand what Jesus meant by this, we need to first understand what sin is. It is the breaking of God’s Law.
Who ultimately defines whether an action or attitude is a sin? God is the true judge of sin since it is against His Law.
It is helpful to realize that every sin is an inconsistency with God’s Character. The perfect nature of God is consistent for all time.
If God would never do a certain act or hold a particular attitude, that action or position is sin.
The understanding of how God behaves is best expressed to us in the person of Jesus. He would never lie. For us to lie is to sin against the nature of God. Jesus would not murder or sleep around; nor should we.
WWJD and what would Jesus not do?
The Law of God is not just prohibitions, but also right actions and ways to focus your life. Jesus summarized the vertical and horizontal love of God and neighbor as the full meaning of the Law.
Do you know that God loves Himself with all the heart that exists in the Godhead? God loves you and your neighbor as fully as the Trinity loves each other. Your life focus is to love God with all your heart and your neighbor as yourself. That’s consistent with God’s nature.
R.C. Sproul said,
Integrity is found where men and women live their lives in a pattern of consistency. It is a pattern that functions the same basic way in church and out of church. It is a life that is open before God. It is a life in which all that is done is done as to the Lord… Coram Deo… before the face of God. That’s the big idea. Next to this idea our other goals and ambitions become mere trifles.[i]
Even though we have all sinned and fallen short of God’s glorious perfect nature, God is willing to forgive us when we acknowledge our failure. You may sin against God four hundred and ninety times and forgiveness is available seventy times seven. That is consistent with God’s nature of forgiveness. We need to understand that our sin is truly against God.
But then Jesus talks about an unforgiveable sin. What inconsistency with God’s nature cannot be forgiven? This question has troubled many Christians who fear that they may have performed the unforgiveable deed. What is blasphemy against the Holy Spirit? The unforgivable blasphemy specified here is the act of deliberately associating the power and the work of Jesus, who is full of the Holy Spirit, with the work of Satan. This is to equate supreme spiritual good with supreme spiritual evil, hardening one’s heart in a way that makes repentance, and therefore forgiveness, impossible.[ii]
At one point in your life you may have deliberately lived in defiance of God and openly mocked the Almighty. In that state where your heart was closed to God, you called good evil and evil good. If you had stayed in that state, you would blaspheme, mock and disrespect the goodness of God.
To die with that frame of mind would be unforgivable by God. How could a loving God force an enemy to obey His Nature? Love does not demand its own way, but leaves room for dissenters to go their own way.
There is a website called ‘The Blasphemy Challenge’[iii] where people are invited to damn themselves to hell by going on YouTube and making a defiant speech against God and include these words, “I deny the Holy Spirit.”
Tragically, 1122 people have responded with a YouTube video stating their defiance against God. Little girls and old men are willing to blaspheme.
If they maintain their disregard for the mercy and kindness of God toward them, they will die forever incapable of experiencing God’s Love. They are un-forgiven because they do not want to be forgiven. They are right in their own eyes and reject God’s Love.
When we hear and see the certainty of God’s Love found in Jesus, how can we turn away? God’s hope is that blasphemers will not perish but step into His light where their deeds are exposed and reconciliation can be held.
Search our hearts God and expose the sin that is buried there. Forgive us and transform us into people who forgive like you do.
[ii] Ligonier Ministries RSB Study Bible