'Night' in the Bible

For you remember, brethren, our labour and toil: how, working night and day so as not to become a burden to any one of you, we came and proclaimed among you God's Good News.

while night and day, with intense earnestness, we pray that we may see your faces, and may bring to perfection whatever may be still lacking in your faith?

For you yourselves know perfectly well that the day of the Lord comes like a thief in the night.

for all of you are sons of Light and sons of the day. We belong neither to the night nor to darkness.

For those who sleep, sleep at night, and those who drink freely, drink at night.