The first verse of the chapter gives us the key to what follows: "And I saw a new heaven (beside real heavens) and a new earth, for the first heaven and first earth were passed away; and there was no more sea." This reference to the passing of the old earth and heavens is sufficient to show that we are dealing with things beyond the resurrection and final judgment. We find in II Peter, chapter 3, a similar reference. The day of the Lord will come as a thief, the heavens shall pass away, the earth shall be burned up; nevertheless we, according to his promise, look for new heavens and a new earth wherein dwelleth righteousness. Peter is quite probably referring to this twenty-first chapter of Revelation; however, they agree as to the facts, in placing the new heavens and earth after the first have "passed away," or been "burned up." Here is the evident antithesis between what we call "this world" and the "next world." That there should be "no more sea," fitly expresses a condition of the heavenly life. The sea to the ancients was not so much expressive of majesty and grandeur, as something dangerous, destructive, restless. Isaiah says: "The wicked are like the troubled sea that cannot rest, whose waters cast up mire and dirt." But that heavenly life will be calm and peaceful, no storms to break, no uncanny dangers to lurk and threaten. What cosmical changes are involved in the conception here presented, what siderial and systemic reconstruction, is a subject not involved in the interpretation of this book and on which it is wise not to speculate.