“I saw a new heaven and a new earth; for the former heaven and the former earth had passed away, and the sea is no more.

Revelation 21:1

The “new heaven” is the heavenly Kingdom of Jesus Christ. The “new earth” is not another earthly globe but a new society of people on this planet​—all of them obedient subjects of Christ’s Kingdom, without racial, national, or linguistic divisions. (Compare Psalm 96:1.) The present symbolic heaven and earth​—the Devil’s system of things with its governmental structure influenced by Satan and his demons—​will have been destroyed. (1 John 5:19) Though literal seas will remain, the figurative sea of restless, wicked mankind will be gone.