Whether it is lawful to curse anyone?

Objections

Objection 1 : It would seem unlawful to curse anyone. For it is unlawful to disregard the command of the Apostle in whom Christ spoke, according to 2 Cor. 13:3. Now he commanded (Rm. 12:14), "Bless and curse not." Therefore it is not lawful to curse anyone.
Objection 2 : Further, all are bound to bless God, according to Dan. 3:82, "O ye sons of men, bless the Lord." Now the same mouth cannot both bless God and curse man, as proved in the third chapter of James. Therefore no man may lawfully curse another man.
Objection 3 : Further, he that curses another would seem to wish him some evil either of fault or of punishment, since a curse appears to be a kind of imprecation. But it is not lawful to wish ill to anyone, indeed we are bound to pray that all may be delivered from evil. Therefore it is unlawful for any man to curse.
Objection 4 : Further, the devil exceeds all in malice on account of his obstinacy. But it is not lawful to curse the devil, as neither is it lawful to curse oneself; for it is written (Ecclus. 21:30): "While the ungodly curseth the devil, he curseth his own soul." Much less therefore is it lawful to curse a man.
Objection 5 : Further, a gloss on Num. 23:8, "How shall I curse whom God hath not cursed?" says: "There cannot be a just cause for cursing a sinner if one be ignorant of his sentiments." Now one man cannot know another man's sentiments, nor whether he is cursed by God. Therefore no man may lawfully curse another.