John Chrysostom
"He was numbered with us and obtained the lot of this ministry, but acquired a field with the reward of unrighteousness." He depicts Judas's character and discreetly reveals his guilt as worthy of punishment.
He does not say, "the Jews acquired it," but, "he acquired a field with the reward of unrighteousness." Since people of weak soul look not so much to the future as to the present, he recounts the punishment that overtook him in this life.
"And falling headlong." He acted well by not stopping his speech at Judas's crime, but at the punishment that overtook him.
"His belly burst open, and all his entrails spilled out." This served as consolation for them.
Read more (80 words)
Then, continuing to speak of him, he notes that the reward for his betrayal became a solemn herald of his punishment. "But he acquired," he says, "a field with the reward of unrighteousness."
Notice how this event occurred according to God's ordering. "Unrighteousness." There are many acts of unrighteousness, but nothing was ever more unrighteous than this unrighteousness. This is preeminently an unrighteous deed.
And this became known not only to his contemporaries, but also to all who lived afterward.