2 Peter 3:8-11

But 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 like one day.  The Lord is not slow about His promise, as some count slowness, but is patient toward you, not wishing for any to perish but for all to come to repentance.  But the day of the Lord will come like a thief, in which the heavens will pass away with a roar and the elements will be destroyed with intense heat, and the earth and its works will be burned up.  Since all these things are to be destroyed in this way, what sort of people ought you to be in holy conduct and godliness