en_tn/jer/20/17.md

making my mother to be my tomb

Jeremiah speaks of his dying while his mother was still pregnant with him as if his mother's womb were his tomb. (See: rc://en/ta/man/translate/figs-metaphor)

a womb that was pregnant forever

Jeremiah speaks of his pregnant mother never giving birth to the baby in her womb as if she had been pregnant forever. (See: rc://en/ta/man/translate/figs-metaphor)