Whether negligence can be a mortal sin?

❌ Objection 1 : It would seem that negligence cannot be a mortal sin. For a gloss of Gregory [*Moral. ix. 34] on Job 9:28, "I feared all my works," etc. says that "too little love of God aggravates the former," viz. negligence. But wherever there is mortal sin, the love of God is done away with altogether. Therefore negligence is not a mortal sin.

❌ Objection 2 : Further, a gloss on Ecclus. 7:34, "For thy negligences purify thyself with a few," says: "Though the offering be small it cleanses the negligences of many sins." Now this would not be, if negligence were a mortal sin. Therefore negligence is not a mortal sin.

❌ Objection 3 : Further, under the law certain sacrifices were prescribed for mortal sins, as appears from the book of Leviticus. Yet no sacrifice was prescribed for negligence. Therefore negligence is not a mortal sin.