NET
1 Then I saw a new heaven and a new earth, for the first heaven and earth had ceased to exist, and the sea existed no more.
Darby
1 And I saw a new heaven and a new earth; for the first heaven and the first earth had passed away, and the sea exists no more.
KJV
1 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.