Thanks,
Chris
Chris,
The Bible makes many references to those who will attempt to deceive people with false doctrine. That's exactly what the "Book of Judas" people are trying to do. They are trying to undermine the authority of God's word.
Judas is truly a tragic figure (see Mark 14:21). He let ambition and greed blind him to Jesus' divinity, in spite of three years sitting under His teaching. As for his relative culpability, I think of him as the instrument that Satan used to carry out his evil (and failed) plan. There was plenty of blame to go around.
As for unforgivable sin, the only one is blasphemy of the Spirit. See Matthew 12:31-32. Blasphemy of the Spirit is rejection of His testimony of the person and work of Jesus Christ.
You're asking some excellent questions!