Luke 2:37
and she had been a widow eighty-four years, and departed not from the temple, serving God night and day with fastings and prayers.
Acts 10:30
And Cornelius said, From the fourth hour of the day I fasted till this hour, and at the ninth hour I was praying in my house, and behold, a man stood before me in splendid clothing,
James 4:8-10
draw nigh to God and he will draw nigh to you. Cleanse your hands, sinners, purify your hearts, double-minded.
James 5:16-18
Confess your faults one to another, and pray one for another, that you may be cured, for the prayer of the righteous operates with great power.