The notion that there might be a sin or sins that are absolutely unforgivable, even by a bishop, is pretty terrifying.  Given what the Church teaches about the sacrament of confession and reconciliation, it’s hard to see how a priest or the bishop wouldn’t be in a position to provide some way back to God.  What’s more, isn’t baptism, the originating sacrament of faith, supposed to be able to cleanse all sins?  A clean slate?  A totally new beginning?