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:
Sin of omission
Paul the Apostle refers to this sin directly when he states "For I do not do the good I want ..." (Romans ).
James the brother of Jesus more exactly defines this sin when he states, "Whoever knows the right thing to do and fails to do it, for him it is sin." (James )