'Day' in the Bible

(for that just man, while living among them, felt his righteous soul tormented day after day by what he saw and heard of their lawless acts),

then [in light of the fact that all this is true, be sure that] the Lord knows how to rescue the godly from trial, and how to keep the unrighteous under punishment until the day of judgment,

But by His word the present heavens and earth are being reserved for fire, being kept for the day of judgment and destruction of the ungodly people.

Nevertheless, do not let this one fact escape your notice, beloved, that with the Lord one day is like a thousand years, and a thousand years is like one day.

But the day of the Lord will come like a thief, and then the heavens will vanish with a [mighty and thunderous] roar, and the [material] elements will be destroyed with intense heat, and the earth and the works that are on it will be burned up.

[while you earnestly] look for and await the coming of the day of God. For on this day the heavens will be destroyed by burning, and the [material] elements will melt with intense heat!

but grow [spiritually mature] in the grace and knowledge of our Lord and Savior Jesus Christ. To Him be glory (honor, majesty, splendor), both now and to the day of eternity. Amen.