'Day' in the Bible

Brothers, you remember our labor and toil. We worked night and day so that we would not become a burden to any of you while we proclaimed the gospel of God to you.

We pray very hard night and day that we may see you again face to face, so that we may equip you with whatever is lacking in your faith.

for you yourselves know very well that the Day of the Lord will come like a thief in the night.

However, brothers, you are not in the darkness, in order that the Day of the Lord might surprise you like a thief.

For all of you are children of the light and children of the day. We do not belong to the night or to darkness.

But since we belong to the day, let's be sober. We must put on the breastplate of faith and love, and the hope of salvation as a helmet.