Gregory the Great, on Ezek 13:5

“You have not gone up to face the enemy, nor have you set up a wall for the house of Israel, to stand in battle in the day of the Lord.”

“To such men it is rightly said through the prophet: "You have not gone up against the enemy, nor have you set up a wall for the house of Israel, to stand in battle on the day of the Lord." To go up against the enemy is to oppose with the free voice of reason any powers that act wickedly. And we stand in battle on the day of the Lord for the house of Israel and set up a wall if we defend the faithful and innocent against the injustice of the perverse with the authority of justice. Because the hireling does not do this, when he sees the wolf coming, he flees.”

Imported from an open dataset — not yet checked against the printed edition.