en_tn/nam/02/10.md

Everyone's heart melts

Nahum speaks of the people losing courage as if their hearts melt like wax. Alternate translation: "Everyone loses courage" (See: rc://en/ta/man/translate/figs-metaphor)

everyone's knees strike together

This describes a physical response to great fear. The people's legs shake so badly that their knees knock together and they are unable to walk or run.