# I am weary with my groaning

His groaning represents the pain or distress that he feels. Alternate translation: "I am very tired because of my pain" (See: [[rc://en/ta/man/jit/figs-metonymy]])

# I drench my bed with tears

This is an exaggeration. Alternate translation: "I make my bed wet with my tears" or "I cry in my bed" (See: [[rc://en/ta/man/jit/figs-hyperbole]])

# bed ... couch

Possible meanings are 1) these are two words for the same thing or 2) the "couch" is the main cushion on the bed or 3) the "bed" is where he sleeps at night and the "couch" is another item of furniture.

# I dissolve my couch with my tears

This is an exaggeration. "My couch is very wet because of my tears" or "I cry hard when I am on my couch" (See: [[rc://en/ta/man/jit/figs-hyperbole]])