Fasting and mourning could be visible communal acts that communicated grief, repentance, crisis, or appeal rather than purely private devotional exercises.
Jonah preaching to the Ninevites - Gustave Doré — Old Testament
Historical and Cultural Background
Kings, cities, and communities sometimes proclaimed fasts, while individuals displayed grief through clothing and appearance.
Historical Setting and Evidence
Culture:
Israelite, Judean/Jewish, Persian
Period:
Divided Monarchy, Persian Period, Roman / Second Temple Period
Evidence:
Well Attested
Interpretive Importance:
Helpful
Biblical narratives and Second Temple evidence attest both private and communal fasting.