Whether the act of justice is to render to each one his own?

Objections

Objection 1 : It would seem that the act of justice is not to render to each one his own. For Augustine (De Trin. xiv, 9) ascribes to justice the act of succoring the needy. Now in succoring the needy we give them what is not theirs but ours. Therefore the act of justice does not consist in rendering to each one his own.
Objection 2 : Further, Tully says (De Offic. i, 7) that "beneficence which we may call kindness or liberality, belongs to justice." Now it pertains to liberality to give to another of one's own, not of what is his. Therefore the act of justice does not consist in rendering to each one his own.
Objection 3 : Further, it belongs to justice not only to distribute things duly, but also to repress injurious actions, such as murder, adultery and so forth. But the rendering to each one of what is his seems to belong solely to the distribution of things. Therefore the act of justice is not sufficiently described by saying that it consists in rendering to each one his own.