Introduction: What is Mortal Sin In Catholic Church?. A mortal sin in the Catholic Church is a serious transgression against God’s law that leads to the loss of sacramental grace. It differs from a venial sin, which is a lesser transgression.
Three criteria define a mortal sin: It must be a serious offence. It must be committed by a person who fully consents to the sin. It must destroy the person’s relationship with God. It must prevent the person from achieving eternal salvation.
A mortal sin is a serious offence that leads to a person’s complete surrender to God’s grace. Mortal sins include but are not limited to murder, adultery, blasphemy willful non-compliance with God’s teaching. Let’s read What is Mortal Sin In Catholic Church?