Whether the moral precepts of the Law are about all the acts of virtue?

Objections

Objection 1 : It would seem that the moral precepts of the Law are not about all the acts of virtue. For observance of the precepts of the Old Law is called justification, according to Ps. 118:8: "I will keep Thy justifications." But justification is the execution of justice. Therefore the moral precepts are only about acts of justice.
Objection 2 : Further, that which comes under a precept has the character of a duty. But the character of duty belongs to justice alone and to none of the other virtues, for the proper act of justice consists in rendering to each one his due. Therefore the precepts of the moral law are not about the acts of the other virtues, but only about the acts of justice.
Objection 3 : Further, every law is made for the common good, as Isidore says (Etym. v, 21). But of all the virtues justice alone regards the common good, as the Philosopher says (Ethic. v, 1). Therefore the moral precepts are only about the acts of justice.