Nicene and Post-Nicene Fathers: Series I/Volume IV/Donatist Controversy/Answer to the Letters of Petilian, the Donatist/Book II/Chapter 17
Chapter 17.—38. Petilianus said: "Thus, thus, thou wicked persecutor, under whatsoever cloak of righteousness thou hast concealed thyself, under whatsoever name of peace thou wagest war with kisses, under whatsoever title of unity thou endeavorest to ensnare the race of men—thou, who up to this time art cheating and deceiving, thou art the true son of the devil, showing thy parentage by thy character."
39. Augustin answered: Consider in reply that these things have been said by us against you; and that you may know to which of us they are more appropriate, call to mind what I have said before.