2 Peter 3:6-8

King James Version

⁶ Whereby the world that then was, being overflowed with water, perished:

⁷ But the heavens and the earth, which are now, by the same word are kept in store, reserved unto fire against the day of judgment and perdition of ungodly men.

⁸ But, beloved, be not ignorant of this one thing, that one day is with the Lord as a thousand years, and a thousand years as one day.