'Night and Day' in the Bible

And should sleep, and rise night and day, and the seed should spring and grow up, he knows not how.

And always, night and day, he was in the mountains, and in the tombs, crying, and cutting himself with stones.

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.

Therefore watch, and remember, that by the space of three years I ceased not to warn everyone night and day with tears.

For you remember, brethren, our labor and travail: for laboring night and day, because we would not be a burden unto any of you, we preached unto you the gospel of God.

Night and day praying exceedingly that we might see your face, and might perfect that which is lacking in your faith?

Neither did we eat any man's bread for nothing; but worked with labor and travail night and day, that we might not be a burden to any of you:

Now she that is a widow indeed, and desolate, trusts in God, and continues in supplications and prayers night and day.

I thank God, whom I serve from my forefathers with pure conscience, that without ceasing I have remembrance of you in my prayers night and day;