THE striking peculiarity of Nahum's thought is its fixed gaze on the enemies of God's Chosen People. The prophet evidently has no fear for the people themselves. At all events he alludes neither to their sin nor to any impending wrath to be visited upon them. Presumably, the destruction of Assyria meant to him the deliverance of Israel from a source of distress and a menacing danger.
—From "A New Standard Bible Dictionary."