Verse 1
THE SEVEN NEW THINGS (1) NEW HEAVEN and, (2) NEW EARTH v. 1, 2
1) "And I saw a new heaven and a new earth," (kai eidon ouranon kainon kai gen kainen) "And a new heaven and a new earth I recognized," Matthew 5:5; The first having been tainted by Satan’s approach to heaven’s throne, with his demon-host of accusers, had to be dissolved, replaced, Isaiah 65:17; Isaiah 66:22; Job 1:1 to Job 2:13; Revelation 12:7-14.
2) "For the first heaven," (ho gar protos ouranos) "Because (for) the first heaven," (had) passed (gone) away, "ceased to be," as formerly declared by our Lord, Matthew 24:35; Psalms 102:25-26; Psalms 119:90; Ecclesiastes 1:4 Romans 4:13; Romans 8:19-23; 2 Peter 3:7-10.
3) "And the first earth were passed away," (kai he prote te apelthan) "And the first earth passed away," had gone away, ceased to be, or been destroyed, in the purging or dissolution of all things from the pollution or contamination of sin, Isaiah 51:6; Even in the Sermon on the Mount our Lord alluded to this coming event, Matthew 5:18; Psalms 37:9; Psalms 37:11; Psalms 37:29.
4) "And there was no more sea," (kai he thalassa ouk estin eti) "And there was (existed) not the sea any more at all;” Isaiah 57:20-21. The sea is considered (in creation) as a part of this polluted universe, called earth. It too shall pass, with the heaven and earth, Mark 13:31; Luke 21:33; Hebrews 1:10-12.
There will then be no more separation, danger, mystery, rebellion, restlessness, or sin.
Tho there shall be no more sea, there shall be a river that never shall run dry, and the water of life shall be available for all, Revelation 22:1; Revelation 22:17; John 4:14.