Albert Barnes Commentary Nahum 2:7

"And it is decreed: she is uncovered, she is carried away; and her handmaids moan as with the voice of doves, beating upon their breasts." — Nahum 2:7 (ASV)

The first word should be rendered, And it is decreed; She shall be laid bare. It is decreed. All this took place, contrary to what people would have thought, because it was the will of God.

She (the people of the city, represented as a captive woman) shall be laid bare, in shame, to her reproach; she shall be brought up, to judgment, or from Nineveh, as she is now sunk low and depressed; and her maids (the lesser cities, like female attendants to the royal city, and their inhabitants represented as women, both by being put to shame and by their weakness).

The whole empire of Nineveh was overthrown by Nabopolassar. Yet neither was the special shame lacking, that the noble matrons and virgins were thus led captive in shame and sorrow.

They shall lead her, as with the voice of doves, moaning, yet, for fear, with a subdued voice.