Luke 18:7
and will not God do justice for his elect that cry to Him day and night, though He bear long with them.
Matthew 26:44
And He left them, and went away again, and prayed the third time, to the same effect.
Luke 6:12
And in those days He went out to a mountain to pray, and He continued all night in prayer to God.
Luke 22:41-46
And when He was withdrawn from them about a stone's-cast, He kneeled down and prayed saying,
1 Thessalonians 3:10
night and day most ardently praying, that we may see your face, and perfect whatever is wanting in your faith?
2 Timothy 1:3
I give thanks to God, whom I serve as my forefathers did, with a pure conscience, having remembrance of thee continually in my prayers night and day;