וְנוֹתְרָ֥ה בַת־צִיּ֖וֹן כְּסֻכָּ֣ה בְכָ֑רֶם כִּמְלוּנָ֥ה בְמִקְשָׁ֖ה כְּעִ֥יר נְצוּרָֽה׃
E a filha de Sião é deixada como a cabana na vinha, como a choupana no pepinal, como cidade sitiada.
Ibn Ezra
ובנצורים And in ruins.4A. V., In the monuments. Besieged.. Comp. נצורה waste (1:8).
Ibn Ezra
ונצורי And the ruins of.7A. V., The preserved. Besieged.7A. V., The preserved. Besieged. Comp. נצורה desolate (1:8).—
From David to Destruction
Moreover, in Yeshayahu’s description of the land being destroyed, he describes Yerushalayim as being left as a remaining “hut in a vineyard” (Yeshayahu 1:8). This refers to the land of Israel made desolate by the invading Assyrians, who exiled the residents of the Northern Kingdom, and destroyed almost all of the Southern Kingdom, except for Yerushalayim, which was saved by the great miracle of Hashem smiting the huge Assyrian army one night while they were besieging Yerushalayim (Melachim II 18-19).
Rashi
with her heart besieged Heb. ונצרת לב. As a besieged city is surrounded by bulwarks, so is this one’s heart surrounded by lewdness and foolishness.