mortal sin


mortal sin

noun

in the Roman Catholic Church : a sin (such as murder) that will result in punishment that lasts forever unless the person who has sinned sincerely confesses to God and asks to be forgiven

Full Definition of MORTAL SIN

:  a sin (as murder) that is deliberately committed and is of such serious consequence according to Thomist theology that it deprives the soul of sanctifying grace — compare venial sin 1

First Known Use of MORTAL SIN

15th century

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