en_tn_lite_do_not_use/jer/13/16.md

he brings darkness

"he causes darkness to come." Here trouble and despair are spoken of as if they were "darkness." Alternate translation: "he brings trouble and despair" or "he cause great troubles to come"

before he causes your feet to stumble

Here a person is referred to by his "feet" to emphasize that he is walking. Alternate translation: "before he causes you to trip and fall as you walk" (See: rc://en/ta/man/jit/figs-synecdoche)

twilight

early morning or evening when it is partially dark, when the sun is beginning to rise or when the sun is almost set

For you are hoping for light, but he will turn it to deep darkness and change it to deep gloom

This speaks of goodness and blessings as "light" and of trouble and despair as "darkness." Alternate translation: "For you were hoping for light and blessings, but Yahweh will give you darkness and great despair—you will feel like you are surrounded by a dark cloud" (See: rc://en/ta/man/jit/figs-metaphor)