The most serious sin in one's life

Pope Shenouda III

A person often forgets the sins he committed, but there may be certain unforgettable sins. David the Prophet for instance asked the Lord in his prayer to forget his many sins, saying, "If You, Lord, should mark iniquities, O Lord, who could stand?" (Ps 130: 3) "Do not enter into judgment with Your servant, for in Your sight no one living is righteous." (Ps 143: 2) "Do not remember the sins of my youth, nor my tra