2 Peter 3:4-9

3:4 and saying, “Where is his promised return? For ever since our ancestors died, all things have continued as they were from the beginning of creation.” 3:5 For they deliberately suppress this fact, that by the word of God heavens existed long ago and an earth was formed out of water and by means of water. 3:6 Through these things the world existing at that time was destroyed when it was deluged with water. 3:7 But by the same word the present heavens and earth have been reserved for fire, by being kept for the day of judgment and destruction of the ungodly.

3:8 Now, dear friends, do not let this one thing escape your notice, that a single day is like a thousand years with the Lord and a thousand years are like a single day. 3:9 The Lord is not slow concerning his promise, as some regard slowness, but is being patient toward you, because he does not wish for any to perish but for all to come to repentance.