Jerome

Thus says the Lord, if they are perfect, and so they will be many: thus also they will be trimmed and will pass through: I will affix you, and I will not afflict you anymore. LXX: Thus says the Lord who rules over many waters, and thus they will be divided, and your hearing will not be heard anymore. The sense is clear according to the letter: Even though, he says, the Assyrians are strong, and their strength increases with the number of all the nations: thus they will also be trimmed by the devastating angel. …

Commentary on Nahum ↗