en_tn_condensed/jer/51/06.md

in her iniquity

Babylon is spoken of as if it were a woman. The word "iniquity" is a metonym for God punishing the people for their iniquity. Alternate translation: "when Yahweh punishes Babylon" (See: rc://en/ta/man/jit/figs-metaphor and rc://en/ta/man/jit/figs-metonymy)

will repay all of it to her

Babylon is spoken of as if it were a woman, and the iniquity of the people is spoken of as if Yahweh needed to pay back a debt. The word "her," meaning Babylon, is a metonym for the people of Babylon. Alternate translation: "will punish the Babylonians as much as they deserve" (See: rc://en/ta/man/jit/figs-metaphor and rc://en/ta/man/jit/figs-metonymy)