11 Be mindful therefore, I pray, now of the “flying sickle” that “rests in the swearer's house;” and “destroys the walls and the timber and the stones.” Be mindful, I pray, how this oath entered into the city, and overturned houses, and temple, and walls, and splendid buildings, and made the city an heap; and that neither the Holy of Holies, nor the sacred vessels, nor any thing else could ward off that punishment and vengeance, for that the oath had been transgressed!
The city, indeed, was thus miserably destroyed. But the king endured what was still more wretched and deplorable. And as the flying sickle overthrew the buildings, so did it also cut him down in his flight. For “the king,” it says, “went forth by night, by way of the gate, and the Chaldeans encompassed the city, and the army of the Chaldeans pursued after the king and overtook him, and they took the king, and brought him to the king of Babylon, and the king of Babylon gave judgment upon Zedekiah, and slew his sons before his face, and put out the eyes of Zedekiah, and bound him with fetters, and carried him to Babylon.”
What is meant by the expression, “he spoke judgment with him?” He demanded of him an account of his conduct, he pleaded against him; and first he slew his two sons, that he might be a spectator of the calamity of his house, and might behold that deplorable tragedy; and then he put out his own eyes. For what reason, I ask again, did this occur? In order that he might go as a teacher to the barbarians, and too the Jews who dwelt among them; and that they who had eyes might discern by him who was bereft of sight, how great an evil is an oath!
Nor only these; but all who dwelt by the way, beholding the man fettered and blinded, might learn by his calamity the greatness of his sin. Therefore one of the prophets declares, “He shall not see Babylon.” And another, “He shall be carried away to Babylon.” And the prophecy seems, indeed, to be contradictory. But it is not so; for both of these are true. For he saw not Babylon, though he was carried away to Babylon. How then did he not see Babylon? Because it was in Judæa he had his eyes put out; for where the oath had been set at nought, there also was it vindicated, and he himself subjected to punishment.
And how was he carried away to Babylon? In a state of captivity. For since the punishment was twofold, deprivation of sight and captivity, the prophets took them severally. The one says, “He shall not see Babylon,” speaking of the loss of his eyes; the other says, “He shall be carried away to Babylon,” signifying his captivity.
Source: Homilies on the Statues (New Advent)