What is the Unforgivable Sin?

We look at what Jesus says about blasphemy against the Holy Spirit in Matthew 12.

 

Matthew 12:31-32  Therefore I tell you, every sin and blasphemy will be forgiven people, but the blasphemy against the Spirit will not be forgiven. And whoever speaks a word against the Son of Man will be forgiven, but whoever speaks against the Holy Spirit will not be forgiven, either in this age or in the age to come.