Whether a circumstance can make a venial sin to be mortal?

❌ Objection 1 : It would seem that a circumstance can make a venial sin mortal. For Augustine says in a sermon on Purgatory (De Sanctis, serm. xli) that "if anger continue for a long time, or if drunkenness be frequent, they become mortal sins." But anger and drunkenness are not mortal but venial sins generically, else they would always be mortal sins. Therefore a circumstance makes a venial sin to be mortal.

❌ Objection 2 : Further, the Master says ( Sentent. ii, D, 24) that delectation, if morose [*See Question [74], Article [6]], is a mortal sin, but that if it be not morose, it is a venial sin. Now moroseness is a circumstance. Therefore a circumstance makes a venial sin to be mortal.

❌ Objection 3 : Further, evil and good differ more than venial and mortal sin, both of which are generically evil. But a circumstance makes a good act to be evil, as when a man gives an alms for vainglory. Much more, therefore, can it make a venial sin to be mortal.