But do not forget this one thing, dear friends: With the Lord a day is like a thousand years, and a thousand years are like a day. The Lord is not slow in keeping his promise, as some understand slowness. Instead he is patient with you, not wanting anyone to perish, but everyone to come to repentance.
But the day of the Lord will come like a thief. The heavens will disappear with a roar; the elements will be destroyed by fire, and the earth and everything done in it will be laid bare.[a]
Since everything will be destroyed in this way, what kind of people ought you to be? You ought to live holy and godly lives as you look forward to the day of God and speed its coming.[b] That day will bring about the destruction of the heavens by fire, and the elements will melt in the heat. But in keeping with his promise we are looking forward to a new heaven and a new earth, where righteousness dwells.
Science points out to us that the earth itself won’t last forever, nor the sun, for that matter, not even the universe as seen now. So much mystery lies in this for sure, but there’s no question that the sun (our star) and our home, earth last only so long. Yes, still many many years left, but again, not forever.
One of the ways we live in deception is the idea that we have plenty of time, or like we’re going to live forever, and that we are indestructible. Neither is the case in this world and time.
Whether we like it or not, this world has an expiration date. But the God who created everything in the first place can make a brand new creation which includes us, those who are redeemed in Christ.
Does that mean this world doesn’t matter, that we can do with it as we please? Of course not. The first book in the Bible, Genesis makes it clear that humankind is to take care of what God has given, to be good stewards of it. Creation itself brings glory to God, even in its present state of groaning.
But our primary task now as Christians, those called in Christ is to bear witness in how we live as well as what we say, to the new world coming. Then we in Christ will somehow be made new along with the old world God created. How that will happen is well beyond us, but we hold on to that promise, as we pray for others, that they would join us. And we live with that end in view. In and through Jesus.