'Day' in the Bible

But because of your stubborn and unrepentant heart you are reserving wrath for yourself on the day of wrath, when God's righteous judgment will be revealed.

on that day when God, through Jesus the Messiah, will judge people's secrets according to my gospel.

As it is written, "For your sake we are being put to death all day long. We are thought of as sheep headed for slaughter."

But about Israel he says, "All day long I have held out my hands to a disobedient and rebellious people."

As it is written, "To this day God has put them into deep sleep. Their eyes do not see, and their ears do not hear."

The night is almost over, and the day is near. Let's therefore put aside the actions of darkness and put on the armor of light.

Let's behave decently, as people who live in the light of day. No wild parties, drunkenness, sexual immorality, promiscuity, quarreling, or jealousy!

One person decides in favor of one day over another, while another person decides that all days are the same. Let each one be fully convinced in his own mind:

The one who observes a special day, observes it to honor the Lord. The one who eats, eats to honor the Lord, since he gives thanks to God. And the one who does not eat, refrains from eating to honor the Lord; yet he, too, gives thanks to God.