[while you earnestly] look for and await the coming of the day of God. For on this day the heavens will be destroyed by burning, and the [material] elements will melt with intense heat! [Is 34:4]
All the host of heaven will be dissolved, And the skies will be rolled up like a scroll; All their hosts [the stars and the planets] will also wither away As a leaf withers from the vine, And as a fig withers from the fig tree. [Rev 6:13, 14]
For the Son of Man is going to come in the glory and majesty of His Father with His angels, and then He will repay each one in accordance with what he has done. [Ps 62:12]
“I assure you and most solemnly say to you, there are some of those standing here who will not taste death before they see the Son of Man coming in His kingdom.”
I am convinced and confident of this very thing, that He who has begun a good work in you will [continue to] perfect and complete it until the day of Christ Jesus [the time of His return]. [Rom 14:10]
But the day of the Lord will come like a thief, and then the heavens will vanish with a [mighty and thunderous] roar, and the [material] elements will be destroyed with intense heat, and the earth and the works that are on it will be burned up.
Since all these things are to be destroyed in this way, what kind of people ought you to be [in the meantime] in holy behavior [that is, in a pattern of daily life that sets you apart as a believer] and in godliness [displaying profound reverence toward our awesome God],
and saying, “Where is the promise of His coming [what has become of it]? For ever since the fathers fell asleep [in death], all things have continued [exactly] as they did from the beginning of creation.”
and keep yourselves in the love of God, waiting anxiously and looking forward to the mercy of our Lord Jesus Christ [which will bring you] to eternal life.