3 At the outset before I defend my version I wish to ask those persons who confound wisdom with cunning, some few questions. Where did you get your copy of the letter? Who gave it to you? How have you the effrontery to bring forward what you have procured by fraud? What place of safety will be left us if we cannot conceal our secrets even within our own walls and our own writing-desks? Were I to press such a charge against you before a legal tribunal, I could make you amenable to the laws which even in fiscal cases appoint penalties for meddlesome informers and condemn the traitor even while they accept his treachery.
For though they welcome the profit which the information gives them, they disapprove the motive which actuates the informer. A little while ago a man of consular rank named Hesychius (against whom the patriarch Gamaliel waged an implacable war) was condemned to death by the emperor Theodosius simply because he had laid hold of imperial papers through a secretary whom he had tempted. We read also in old histories that the schoolmaster who betrayed the children of the Faliscans was sent back to his boys and handed over to them in bonds, the Roman people refusing to accept a dishonourable victory.
When Pyrrhus king of Epirus was lying in his camp ill from the effects of a wound, his physician offered to poison him, but Fabricius thinking it shame that the king should die by treachery sent the traitor back in chains to his master, refusing to sanction crime even when its victim was an enemy. A principle which the laws uphold, which is maintained by enemies, which warfare and the sword fail to violate, has hitherto been held unquestioned among the monks and priests of Christ.
And can any one of them presume now, knitting his brow and snapping his fingers, to spend his breath in saying: “What if he did use bribes or other inducements! He did what suited his purpose.” A strange plea truly to defend a fraud as though robbers, thieves, and pirates did not do the same. Certainly, when Annas and Caiaphas led hapless Judas astray, they only did what they believed to be expedient for themselves.
Source: Letters (New Advent)