Passage
It is of Jehovah's loving-kindness we are not consumed, because his compassions fail not;
It is of Jehovah's loving-kindness we are not consumed, because his compassions fail not;
Lamentations 3:20 My soul hath [them] constantly in remembrance, and is humbled in me.
Lamentations 3:21 This I recall to heart, therefore have I hope.
Lamentations 3:22 It is of Jehovah's loving-kindness we are not consumed, because his compassions fail not;
Lamentations 3:23 they are new every morning: great is thy faithfulness.
Lamentations 3:24 Jehovah is my portion, saith my soul; therefore will I hope in him.
The verse centers on "jehovah's", "loving-kindness", "consumed", "compassions", and "fail". It is saying that the verse draws attention to "jehovah's" and "loving-kindness", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 21's "This I recall to heart therefore have..." into verse 23's "they are new every morning great is...", so "jehovah's" and "loving-kindness" 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 "jehovah's" and "loving-kindness" with trust shaped by these words, not by a vague optimism outside the passage.