Jerusalem remembereth in the days of her affliction and of her miseries all her pleasant things that were from the days of old: When her people fell into the hand of the adversary, and none did help her, The adversaries saw her, they did mock at her desolations.
Lamentations 1:5 Her adversaries are become the head, her enemies prosper; For Jehovah hath afflicted her for the multitude of her transgressions: Her young children are gone into captivity before the adversary.
Lamentations 1:6 And from the daughter of Zion all her majesty is departed: Her princes are become like harts that find no pasture, And they are gone without strength before the pursuer.
Lamentations 1:7 Jerusalem remembereth in the days of her affliction and of her miseries all her pleasant things that were from the days of old: When her people fell into the hand of the adversary, and none did help her, The adversaries saw her, they did mock at her desolations.
Lamentations 1:8 Jerusalem hath grievously sinned; therefore she is become as an unclean thing; All that honored her despise her, because they have seen her nakedness: Yea, she sigheth, and turneth backward.
Lamentations 1:9 Her filthiness was in her skirts; she remembered not her latter end; Therefore is she come down wonderfully; she hath no comforter: Behold, O Jehovah, my affliction; for the enemy hath magnified himself.
The verse centers on "jerusalem", "remembereth", "days", "affliction", "miseries", "pleasant", and "things". It is saying that the verse draws attention to "jerusalem" and "remembereth", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 6's "And from the daughter of Zion all..." into verse 8's "Jerusalem hath grievously sinned therefore she is...", so "jerusalem" and "remembereth" belong inside that flow. In Lamentations context, the local focus is covenant, worship, and faithfulness.
A plain takeaway is to answer the verse's own emphasis on "jerusalem" and "remembereth" with trust shaped by these words, not by a vague optimism outside the passage.