'Day' in the Bible

But according to your hardness and unrepentant heart you are treasuring up for yourself wrath in the day of wrath, revelation, and of the righteous judgment of God;

in the day when God will judge the secrets of men, according to my Good News, by Jesus Christ.

Even as it is written, "For your sake we are killed all day long. We were accounted as sheep for the slaughter."

But as to Israel he says, "All day long I stretched out my hands to a disobedient and contrary people."

According as it is written, "God gave them a spirit of stupor, eyes that they should not see, and ears that they should not hear, to this very day."

The night is far gone, and the day is near. Let's therefore throw off the works of darkness, and let's put on the armor of light.

Let us walk properly, as in the day; not in reveling and drunkenness, not in sexual promiscuity and lustful acts, and not in strife and jealousy.

One man esteems one day as more important. Another esteems every day alike. Let each man be fully assured in his own mind.

He who observes the day, observes it to the Lord; and he who does not observe the day, to the Lord he does not observe it. He who eats, eats to the Lord, for he gives God thanks. He who doesn't eat, to the Lord he doesn't eat, and gives God thanks.