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:
Tikkun HaKlali
Although the sin of wasted seed is considered the most serious of the violations of the Covenant, other sins also accomplish the same thing. Rebbe Nachman taught that one who earns his livelihood dishonestly also breaches the Covenant, as his craving for money can make him go so far as to rob his fellow man. The way one thinks, speaks and acts are also areas in which he can uphold or damage the Covenant.