Passage
Thou hast heard their reproach, O Jehovah, all their imaginations against me;
Thou hast heard their reproach, O Jehovah, all their imaginations against me;
Lamentations 3:59 Jehovah, thou hast seen my wrong: judge thou my cause.
Lamentations 3:60 Thou hast seen all their vengeance, all their imaginations against me.
Lamentations 3:61 Thou hast heard their reproach, O Jehovah, all their imaginations against me;
Lamentations 3:62 the lips of those that rise up against me and their meditation against me all the day.
Lamentations 3:63 Behold thou their sitting down and their rising up: I am their song.
The verse centers on "thou", "hast", "heard", "reproach", "jehovah", "imaginations", and "against". It is saying that the verse draws attention to "thou" and "hast", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 60's "Thou hast seen all their vengeance all..." into verse 62's "the lips of those that rise up...", so "thou" and "hast" 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 "thou" and "hast" with trust shaped by these words, not by a vague optimism outside the passage.