'Fastings' in the Bible

And she was a widow of about fourscore and four years, which departed not from the temple, but served God with fastings and prayers night and day.

and having appointed to them by vote elders in every assembly, having prayed with fastings, they commended them to the Lord in whom they had believed.

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

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