Eternal sin
In Catholic teaching there are six sins that blaspheme against the Holy Spirit. They are: Several passages in the Bible are frequently interpreted as referring to the unforgivable sin:
Martha Wall
I have come to see that buying toys or ice cream or dog food is not sin. The sin lies in permitting Christians to remain victims of a warped sense of values that is impoverishing their own lives and robbing them of a great inheritance [in Heaven]... It is sin to allow earnest young Christians to plan mediocre lives around a materialistic ideal without challenging them to battle. We sin if we do not offer to lead the charge! God has sent us [missionaries] into a stirring conflict, one that should stir response in the blood of every Christian...God holds us responsible for advance!