Nicene and Post-Nicene Fathers: Series I/Volume IV/Donatist Controversy/Answer to the Letters of Petilian, the Donatist/Book II/Chapter 9
Chapter 9.—21. Petilianus said: "Hemmed in, therefore, by these offenses, you cannot be a true bishop."
22. Augustin answered: By what offenses? What have you shown? What have you proved? And if you have proved charges on the part of I know not whom, what has that to do with the seed of Abraham, in which all the nations of the earth are blessed?