2 Peter 3:6-8

World English Bible

⁶ by which means the world that existed then, being overflowed with water, perished. ⁷ But the heavens that exist now and the earth, by the same word have been stored up for fire, being reserved against the day of judgment and destruction of ungodly men.

⁸ But don’t forget this one thing, beloved, that one day is with the Lord as a thousand years, and a thousand years as one day.