en_tn_lite_do_not_use/jer/25/12.md

have been completed

AT: "when their punishment is complete"

make it an unending desolation

God vows to turn Babylon into a desert like wilderness.

for their deeds and the works of their hands

God will cause them to receive the same punishment they inflicted on the nations they conquered. (See: rc://en/ta/man/translate/figs-doublet)