RobH_en_tn/jdg/13/14.md

anything that comes from the vines

Here the angel refers to any food that grow on a vine as "coming" from the vine. Alternate translation: "anything that grows on a vine" (See: rc://en/ta/man/translate/figs-metonymy)

unclean

Something that Yahweh has stated is unfit to eat is spoken of as if it were physically unclean. See how you translated this phrase in Judges 13:7. (See: rc://en/ta/man/translate/figs-metaphor)