Is there a sin that is unforgivable? It's not a question most Christians want to answer. The Bible tells us that Jesus died for our sins and offers forgiveness, what if we were talking about the ultimate sin - the unpardonable one - blasphemy against the Holy Spirit? This is an extremely tough topic, but I'm going to take you through some key passages in Scripture and share my thoughts on this difficult question. Check out the latest episode in my series on sin.