The Catechism of the Catholic Church states: 1857 For a sin to be mortal, three conditions must together be met: "Mortal sin is sin whose object is grave matter and which is also committed with full knowledge and deliberate consent." What if a sin has been committed that has grave matter but lacks the knowledge and consent needed to make it mortal? How might one refer to such a sin? Since it has grave matter, one might refer to it--logically--as a grave sin. That would seem pretty straightforward: Sin with grave matter is grave sin. Add the needed knowledge and...
