منتدى الفرح المسيحى - An outstanding example of this is the fast of the people of Nineveh

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Pope Shenouda III

Nations also fasted

An outstanding example of this is the fast of the people of Nineveh (Jon 3) and how God accepted it and forgave their sins.
Another example is the fast of Cornelius the Centurion (Acts 10:30) which God accepted and sent to him the Apostle Peter who preached and baptised him.
The Old Testament tells us about the fast of King Darius during Daniel's ordeal and how he “spent the night fasting; and no musicians were brought before him.” (Dan 6:18).