Revelation 21:1 KJV

And I saw a new heaven and a new earth: for the first heaven and the first earth were passed away; and there was no more sea.

A new heaven, and new earth: the new Jerusalem where God dwells, and banishes all sorrow from his peopleThe new heaven and the new earth will not be separate from each other; the earth of the saints, their glorified, bodies, will be heavenly. The old world,...

Isaiah 66:22 For as the new heavens and the new earth, which I will make, shall remain before me, saith the LORD, so shall your seed and your name remain.
2 Peter 3:13 Nevertheless we, according to his promise, look for new heavens and a new earth, wherein dwelleth righteousness.
Isaiah 65:17–19 For, behold, I create new heavens and a new earth: and the former shall not be remembered, nor come into mind. …
2 Peter 3:10 But the day of the Lord will come as a thief in the night; in the which the heavens shall pass away with a great noise, and the elements shall melt with fervent heat, the earth also and the works that are therein shall be burned up.
Revelation 20:11 And I saw a great white throne, and him that sat on it, from whose face the earth and the heaven fled away; and there was found no place for them.
Revelation 21:5 And he that sat upon the throne said, Behold, I make all things new. And he said unto me, Write: for these words are true and faithful.

From OpenBible.info, most relevant first.

And Καὶ Kai καί Conjunction
I saw εἶδον eidon Verb · aorist active indicative, first person singular εἴδω eídō
a new καινὸν kainon καινός Adjective · accusative masculine singular
heaven οὐρανὸν ouranon οὐρανός Noun · accusative masculine singular
and καὶ kai καί Conjunction
a new καινήν kainēn καινός Adjective · accusative feminine singular
earth γῆν gēn γῆ Noun · accusative feminine singular
for γὰρ gar γάρ Conjunction
the first ὁ ho Article · nominative masculine singular πρῶτος prōtos πρῶτος Article · nominative masculine singular
heaven οὐρανὸς ouranos οὐρανός Noun · nominative masculine singular
and καὶ kai καί Conjunction
the first ἡ hē Article · nominative feminine singular πρώτη prōtē πρῶτος Article · nominative feminine singular
earth γῆ gē γῆ Noun · nominative feminine singular
were passed away παρῆλθε parēlthe παρέρχομαι Verb · aorist active indicative, third person singular
and καὶ kai καί Conjunction
there was ἔστιν estin Verb · present active indicative, third person singular ἐστί estí
no οὐκ ouk οὐ Adverb
more ἔτι eti ἔτι Adverb
sea ἡ hē Article · nominative feminine singular θάλασσα thalassa θάλασσα Noun · nominative feminine singular

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