St. Catherine of Sienna

He is insane who rises or acts contrary to the Vicar who holds the Blood of Christ crucified. Even if he was a demon incarnate, I should not raise my head against him, but always grovel and ask for the Blood out of mercy. . . . God wants neither you nor anyone else to set themselves up as a righter of the wrongs of His ministers. [Letters, Vol. 1, letter #28]