Bible Verses About Fasting: Public calamities

Therefore also now, saith the LORD, turn ye even to me with all your heart, and with fasting, and with weeping, and with mourning:

And I set my face unto the Lord God, to seek by prayer and supplications, with fasting, and sackcloth, and ashes:

In weariness and painfulness, in watchings often, in hunger and thirst, in fastings often, in cold and nakedness.

And when they had ordained them elders in every church, and had prayed with fasting, they commended them to the Lord, on whom they believed.

In stripes, in imprisonments, in tumults, in labours, in watchings, in fastings;