It is right and necessary,  o barons, that we should not be presumptuous about our merits or about the state and merits of our whole kingdom (regnum) . . . we are obligated to reestablish the road to justice and  pietas, when we see that it has become significantly damaged. We are inspired by this that He says by the  gift of hisx-large ss, when he says: "By me kings reign, and promulgators of laws determine justice" [Proverbs 8:15 "Per me reges regnant, et legum conditores iusta decernunt"]. For we consider that nothing is more pleasing to God than if we straightforwardly offer Him that which we have learnt Him to be, namely mercy and justice. In this offering the duty of kingship receives a certain privilege of priesthood; Consequently a certain wise man who was learned in the law calls the interpreters of the law priests. [Cuius merito quis nos sacerdotes appellet: iustitiam namque colimus et boni et aequi notitiam profitemur, aequum ab iniquo separantes, licitum ab illicito discernentes. Dig.1.1.1.1 (533 A.D.) Ulpian on the First Book of the Institutes (ca. 230 A.D.)]