Unpardonable Sin, Unforgivable Sin - Bible Study

What is the unforgivable sin? Didn't Jesus pay for all sins? These and more questions will be answered using the Bible.

Verses used in this Bible study:
Matthew 12:31,32
John 1:29
1 John 2:2
Acts 10:43
Acts 13:38,39
Colossians 2:13,14
Ephesians 1:7
Matthew 12:31,32
John 16:7-11