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:
Christian views on sin
Roman Catholic doctrine also sees sin as being twofold: Sin is, at once, any evil or immoral "action" which infracts God's law and the inevitable consequences, the "state of being" that comes about by committing the sinful action. Sin can and does alienate a person both from God and the community. Hence, the Catholic Church's insistence on reconciliation with both God and the Church itself.