Augustine of Hippo

Petilianus said, "We must consider, I say, and declare how far the treacherous traditor is to be accounted dead while yet in life. Judas was an apostle when he betrayed Christ; and the same man was already dead, having spiritually lost the office of an apostle, being destined afterwards to die by hanging himself, as it is written: 'I have sinned,' says he, 'in that I have betrayed the innocent blood; and he departed, and went and hanged himself.' The traitor perished by the rope: he left the rope for others like himself, of whom the …

Letters Of Petilian The Donatist 2:8-17 ↗

Jerome

Let his days be few. His days were made few, but his nights increased: for he was cut off in the middle of his days. The sun withdrew from him, and behold, darkness was multiplied for him. And let another receive his episcopate. This too is interpreted more plainly in the Acts of the Apostles. But it was not only spoken of Judas in that time, it is spoken even to this day. If Judas lost his apostleship, let priests and bishops guard themselves, lest they too lose their own priesthood. If an apostle fell, a monk can fall more easily. …

Homily 35, on Psalm 108 ↗