en_tn/jdg/11/36.md

has taken vengeance for you against your enemies, the Ammonites

AT: "has defeated your enemies, the Ammonies, for you"

Let this promise be kept for me

AT: "Keep this promise for me" or "Keep this promise concerning me" (See: rc://en/ta/man/translate/figs-activepassive)

grieve over my virginity

AT: "weep because I am a virgin" or "cry because I have never been married"