Luke 2:37
And she was a widow of about fourscore and four years, who departed not from the temple, but served God with fastings and prayers, night and day.
Luke 18:7
And shall not God vindicate his own elect, who cry to him day and night, though he bear long with them?
Ephesians 2:3
in the desires of the flesh, doing the will of the flesh and the mind, and were by nature children of wrath, even as the others.
1 Timothy 5:5
Now she that is a widow indeed and desolate, trusteth in God and continueth in supplications and prayers night and day.
2 Timothy 1:3
I thank God, whom I serve from my forefathers with a pure conscience, that I have remembrance of thee in my prayers without ceasing night and day,
1 John 1:9
If we confess our sins, he is faithful, and just to forgive us our sins, and to cleanse us from all unrighteousness.