פירושים על נחום 2:2: רש״י, רמב״ם, אבן עזרא ועוד

The scatterer who came up before you is besieged by a siege—The scatterer, who came up upon the land of Judah before you during the time of Hezekiah, is now besieged by the siege of Nebuchadnezzar king of Babylon, who has besieged him.

1 Arise: Now, returning to speak to Nineveh.

Watch the way—You men of Judah, watch the crossroads and see those going to besiege him [Sennacherib] and strengthen your loins and fortify your power mightily.