Revelation 21:1 says, "Then I saw a new heaven and a new earth; for the first heaven and the first earth had passed away, and the sea was no more."
Why would there be no more sea and how could that kind of a New Heavens and New Earth literally be a great place to live?
Everyone I knew in the Worldwide Church of God from Herbert Armstrong on down taught and believed that the Book of Revelation is always literally true. I never heard the word "metaphor" uttered once when wondering "How could that be?"
So how could Revelation 21:1 be taken literally without creating Hell, not a New Heavens and New Earth on Earth?
One author offers this explanation.
"This passage puzzled me for a long time, too. After all, most of us enjoy the sea -- boating, swimming, snorkeling, etc. The sea is beautiful, and majestic. It would be a shame if there were nothing to take its place in the new creation.
But in ancient Hebrew thought, the sea was a dangerous place. Among Israel's neighbors, Yam was the terrifying sea-god. Unlike their neighbors the Phoenicians (modern Lebanon), the Israelites were not especially fond of boats. The primeval waters of Genesis 1 are frightening and chaotic. During "de-creation" (the Flood), the primeval waters deluge the earth, although Noah's family is rescued. The Red Sea too is the scene of divine rescue, although the waters flood back once the Hebrews have crossed to dry land, killing the pursuing Egyptians. Joshua too crosses the water (near Jericho), a similar miracle preparing the way for the Israelites to enter the Promised Land.
Skye Jethani expressed it well: "The massive power and unpredictability of the sea is why ancient peoples saw it as a symbol of evil. The inhabitants of ancient Israel, who were not a seafaring people, viewed the ocean as a realm of chaos, destruction, and darkness. Rather than a delightful place for recreation, to them the sea was a dark abyss to be feared. In their literature, including the biblical narrative, the sea became a metaphor for the forces of evil and disorder that stood in opposition to their God of order and beauty" (With: Reimagining the Way you Relate to God, 136).
I also like the way Philip Graham Ryken put it: "The sea represents everything that chafes and frets under the dominion of God; everything that is out of our control. But there is nothing like that in the new heaven and the new earth. Everything there is under the orderly blessing of God" (in D. A. Carson and Jeff Robinson Sr., eds., Coming Home Essays on the New Heaven and New Earth, 125).
So when John tells is that there will be no more sea, God is assuring us that in the new world there will be no more evil, chaos, or danger. I imagine (speculate) there will be no shortage of beauty and majesty! If the ocean is no more, then something better will have taken its place."
https://www.douglasjacoby.com/qa-1486/
I would suspect this to be more the intent of the author of Revelation. Unless "John" was just out of touch with the realities of such an event or on good drugs.
When I was digging at the archaeological site Megiddo in northern Israel, I was in the Valley of Megiddo. The world for Mount is "Har" and it is there that all the armies of the earth will gather in the place called "Har-Megiddo"
Revelation 16:
However, it was not difficult to notice that the actual space in the Valley of Megiddo was probably not big enough to accommodate "the Kings (armies I assume) of the whole world". Assyrians, Egyptians and many others have fought at Har-Megiddo for thousands of years for sure. But only two at a time. That would about do it.
2 The sixth angel poured out his bowl on the great river Euphrates, and its water was dried up to prepare the way for the kings from the East. 13 Then I saw three impure spirits that looked like frogs; they came out of the mouth of the dragon, out of the mouth of the beast and out of the mouth of the false prophet. 14 They are demonic spirits that perform signs, and they go out to the kings of the whole world, to gather them for the battle on the great day of God Almighty.
15 “Look, I come like a thief! Blessed is the one who stays awake and remains clothed, so as not to go naked and be shamefully exposed.”
16 Then they gathered the kings together to the place that in Hebrew is called Armageddon.
When I inquired about this, Israel Finkelstein (The Bible Unearthed) said, "Well, we exaggerate."
When I was overlooking the Temple Mount and the church hymn "Mt Zion Stands Most Beautiful....the Joy of All the Land" came to mind, and since the hymn said "the city of the mighty king does on its North side stand", I looked South and asked, "Where is Mt. Zion?" I was told "Right there!? I said, "That's just a dirt hill and looks like all these other dirt hills."
He said, "We exaggerate"
I suspect that much of what the Churches of God cannot bring themselves to see as anything but literally true and how it will all be in the Wonderful World Tomorrow is metaphor and it would be wise not to portray it as anything else.
A world without literal seas would be Hell on Earth
I suspect Revelation 9:16 was also a bit of a reach with 200 Million HORSEMEN taking out 1/3 of humanity. (And don't substitute "tanks, troops and F-18's for Horsemen!)
The Sixth Trumpet
…15So the four angels who had been prepared for this hour and day and month and year were released to kill a third of mankind. 16And the number of mounted troops was two hundred million; I heard their number. 17Now the horses and riders in my vision looked like this: The riders had breastplates the colors of fire, sapphire, and brimstone. The heads of the horses were like the heads of lions, and out of their mouths proceeded fire, smoke, and brimstone.…
…15So the four angels who had been prepared for this hour and day and month and year were released to kill a third of mankind. 16And the number of mounted troops was two hundred million; I heard their number. 17Now the horses and riders in my vision looked like this: The riders had breastplates the colors of fire, sapphire, and brimstone. The heads of the horses were like the heads of lions, and out of their mouths proceeded fire, smoke, and brimstone.…