I do fear, too dreadful: Sith ’twas my fault to give the people scope, ’Twould be my tyranny to strike and gall them For what I bid them do: for we bid this be done, When evil deeds have their permissive pass And not the punishment. Therefore indeed, my father, I have on Angelo imposed the office; Who may, in the ambush of my name, strike home, And yet my nature never in the fight To do in slander. And to behold his sway, I will, as ’twere a brother of your order, Visit both prince and people: therefore, I prithee, Supply me with the habit and instruct me How I may formally in person bear me Like a true friar. More reasons for this action At our more leisure shall I render you; Only, this one: Lord Angelo is precise; Stands at a guard with envy; scarce confesses That his blood flows, or that his appetite Is more to bread than stone: hence shall we see, If power change purpose, what our seemers be.
I fear it would have been too frightening: Since it was my fault for giving the people too much freedom, it would be my tyranny to punish them for doing what I allowed: for we gave permission for this to happen, but didn’t punish the wrongdoers. So, my father, I’ve given Angelo the responsibility; He can, under the cover of my name, do what’s needed, but my nature will never allow me to personally do wrong. To observe how he rules, I’ll visit both prince and people, and I’ll take on the role of a friar in your order: Please, I ask you, give me the habit and teach me how to carry myself as a true friar. There are more reasons for my actions that I’ll explain later; but here’s one reason: Lord Angelo is very strict; He stands guard with jealousy; he hardly admits that he has any emotions, or that his desires are more for food than power: we’ll see, if power changes his intentions, what he really is.
Duke Vincentio · Act 1, Scene 3
The Duke explains to Friar Thomas why he has handed power to Angelo instead of enforcing the laws himself. This passage matters because it lays bare the Duke's entire strategy—he will test Angelo by disguising himself, watching, and learning who people really are when they think no one is watching. It reveals that the Duke sees his absence as a tool for justice, not an escape from duty.