Again, what about the Earth? Well, the Bible states in many places that the Earth will never be destroyed -- it is firmly established. Please read Psalms 78:69, and Psalms 104:5, and Ecclesiastes 1:4. Also, at Isaiah 45:18, God says the Earth is "firmly established", because He wants it inhabited, to fulfill His purpose with Adam's offspring. (See Psalms 115:16) Revelation 21:1 has to be understood figuratively. Otherwise, it contradicts these other Scriptures.
Much of the OT is written in the prophetic future. Wikipedia says the following,
"The
prophetic perfect tense is a literary technique used in the
Bible that describes future events that are so certain to happen that they are referred to in the
past tense as if they already happened"
Prophetic perfect tense - Wikipedia
Psalm 8:6 is a perfect example,
Thou madest him to have dominion over the works of thy hands; thou hast put all [things] under his feet:
While it may be tempting to say all things are right now, this very day, under the feet of Jesus, it is not actually the case. There is little doubt that right now Satan is called the "god of this world" (2 Cor 4:4) which means just what it says, Satan rules over this present world (lucekly for everybody, Christians constrain him). He is called, "the prince of the power of the air" (Eph 2:2). There are others, but hopefully these two are sufficient to make my point.
So here we have an apparent contradiction. One verse , in the OT, says all things are under the feet of Jesus Christ. But there are a few in the NT (god of this world, etc) that say quite the opposite. What are we to do? Well, let's take a look at a verse in Hebrews.
Heb 2:8,
Thou hast put all things in subjection under his feet. For in that he put all in subjection under him, he left nothing [that is] not put under him. But now we see not yet all things put under him.
The first sentence is quoted from Psalms 8:6. The second sentence intensifies that which the first said. The third sentence is the answer. The key is the words, "but now" which means, not the OT, nor the future as outlined in Revelations. "Now" is this present age of grace which stands between the OT (including the gospels) and the events in Revelations. This age of grace was hidden in God and not revealed until God told Paul (Romans 16:25-26, Eph 1:9, Eph 3:9, Col 1:26, et. al.).
The OT is God dealing primarily with Israel. He promised them a kingdom. They would have received that kingdom had they not had Jesus crucified by the Romans. But they did (specifically much of their leadership), and therefore the promised kingdom is left unfulfilled. The story of God and His dealings with Israel can be understood by reading from the end of the gospel of John straight to the book of Revelations (also Daniel, Ezekiel, et. al.), just skipping over everything from the book of Acts to Jude. It makes for a complete story of how God will fulfill the promises He made to Israel.
The mystery I mentioned above that was hidden in God from before the foundation of the world is another story altogether. This age of grace was kept secret for one huge reason. We, in this present age of grace, have something Israel never had. We have Christ in us.
Col 1:25-27,
25 Whereof I (Paul) am made a minister, according to the dispensation of God which is given to me for you, to fulfil the word of God;
26 [Even] the mystery which hath been hid from ages and from generations, but now (age of grace after Pentecost) is made manifest to his saints:
27 To whom (us, not just Israel) God would make known what [is] the riches of the glory of this mystery among the Gentiles; which is Christ in you, the hope of glory:
Every born again believer has Christ in them. No wonder Jesus told us we would do the works he did (John 14:12). When Jesus was here there was one Jesus for the devil to worry about. Now, thanks to him having killed Jesus, there are millions upon millions of Christs walking the earth. Too bad many don't know about the power they have, but the devil never knows when they might discover it, and the Christians who do know the power they have are enough to tie the devil up into a nice tight knot!
It may seem as though I'm digressing, but I just wanted to make the point that when God gave Israel the scriptures they contained nada, zip, zero, regarding our present age of grace. That is why I said we can get the story of Israel by reading from John's gospel right on to Revelations. Our present age was secret, about which they knew nothing. The apostles thought Jesus was going to the father after his resurrection only to return soon to finish the job he came to do, i.e. "put all things under his feet." They didn't know there would be such a prolonged period of time before Jesus returned. It was a secret hidden in God, so how could they have known?
That should make it easy to understand why things are not yet actually under his feet as it says in Hebrew 2:8.
All the verses that speak of the everlasting earth are from the OT. If they are taken as the prophetic future tense, then all contradictions about some verses saying the earth will be destroyed and others saying it is established forever disappear. All the verses that speak of God and Jesus Christ having complete dominion, as well as the earth being established forever, are speaking of the future when Jesus returns to finally put down the devil and the new heavens and new earth are created. The old ones can burn to a crisp and there will be no contradictions. Once this heaven and earth are dissolved, God will create new ones and they will indeed fit all God said about being everlasting, etc. in the scriptures you mentioned