Luke 2:37
and she was a widow of about eighty-four years, and she departed not from the temple, but served, day and night, with fastings and prayers.
Acts 10:30
And Cornelius replied: Four days ago, I was fasting till this hour; and, at the ninth hour, I was praying in my house; and behold, a man stood before me in bright clothing,
James 4:8-10
draw near to God, and he will draw near to you. Cleanse your hands, you sinners, and purify your hearts, you double-minded men.
James 5:16-18
Confess your faults one to another, and pray for one another, that you may be restored to health: the fervent prayer of a righteous man avails much.