Passage
Me He hath led, and causeth to go <FI>in<Fi> darkness, and without light.
Me He hath led, and causeth to go <FI>in<Fi> darkness, and without light.
Lamentations 3:1 I <FI>am<Fi> the man <FI>who<Fi> hath seen affliction By the rod of His wrath.
Lamentations 3:2 Me He hath led, and causeth to go <FI>in<Fi> darkness, and without light.
Lamentations 3:3 Surely against me He turneth back, He turneth His hand all the day.
Lamentations 3:4 He hath worn out my flesh and my skin. He hath broken my bones.
The verse centers on "light", "darkness", "hath", "causeth", and "without". It is saying that the contrast between light and darkness marks a real divide in how people respond to God's work.
The nearby context moves from verse 1's "I FI am Fi the man FI..." into verse 3's "Surely against me He turneth back He...", so "light" and "darkness" 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 "light" and "darkness" with trust shaped by these words, not by a vague optimism outside the passage.