Whoever is not with me is against me, and whoever does not gather with me scatters. Therefore I tell you, every sin and blasphemy will be forgiven people, but the blasphemy against the Spirit will not be forgiven. (Matthew 12:30-31 (ESV))
What is the unforgivable sin? What does “blasphemy against the Spirit” really mean?
The first word in Matthew 12:31 is “Therefore.” That word is defined by Merriam-Webster dictionary as, “for that reason” or “because of that.” It’s an extremely important word in this verse of Scripture. It tells us the unforgivable sin is because of what is being described in the previous verse.
In the previous verse, Jesus is talking about people that are against him. He is talking about people that are not followers.
Therefore, the unforgivable sin is to reject Jesus and refuse to follow him.