If everyone is in a glorified body, why the separation between those in the New Jerusalem and the others outside of it who appear to need leafs for healing`? This isn't the millennium either, its the new heaven and new earth in context. Any good explanations?
Rev 21:24 And the nations of them which are saved shall walk in the light of it: and the kings of the earth do bring their glory and honour into it.
Rev 21:25 And the gates of it shall not be shut at all by day: for there shall be no night there.
Rev 21:26 And they shall bring the glory and honour of the nations into it.
Rev 21:27 And there shall in no wise enter into it any thing that defileth, neither whatsoever worketh abomination, or maketh a lie: but they which are written in the Lamb's book of life.
Rev 22:2 In the midst of the street of it, and on either side of the river, was there the tree of life, which bare twelve manner of fruits, and yielded her fruit every month: and the leaves of the tree were for the healing of the nations.
IMO because we do not lose free will when we are resurrected, and we are able to make mistakes and fall short of perfection after resurrection. Angels were created perfect but fell. We are made a new creation, but that does not mean we cannot fall. If we make a mistake, we will not need to respond like Adam and Eve and hide from God. We know that God is full of loving kindness and tender mercies and will instantly forgive us, if we call on Him and are honest with Him about what we have done and are contrite. Jesus sacrifice is a once far all perpetual sacrifice, so it will avail for sinners on into eternity. The tree of life in the garden was available for eating when the human started to become weak. It would reviatalise him/her and extend his/her life.
Why did God cut off access to the tree of life? He tells us -
Gen 3:22 Then the LORD God said, “Behold, the man has become (HaYaH qal perfect) like one of us for to know (qal infinitive construct) good and evil. Now, lest he keep on reaching (qal imperfect) out his hand and keep on taking (waw-qal perfect) also of the tree of life and keep on eating (waw-qal perfect), and keep on living (waw-qal perfect) forever—”
Gen 3:23 therefore the LORD God sent him out from the garden of Eden to work the ground from which he was taken.
Gen 3:24 He drove out the man, and at the east of the garden of Eden he placed the cherubim and a flaming sword that turned every way to guard the way to the tree of life.
God does not say, “If man eats even once from the tree of life He will live forever.” But "If man keeps on eating from the tree of life, he will keep on living forever.” Man needs to keep on eating forever to keep on living forever.
If we sin after resurrection, we will start to feel sick, and we will need to eat leaves from the tree of life to become whole again.
There will be people from every nation among the redeemed all over the new earth, bringing offerings to the holy city. Some of them will sin and need healing, which will be freely available by eating leaves from the trees of life, just as, by looking to the bronze serpent, healing from snake bites was freely available to Israelites who had sinned in the desert .
People assume there can be no imperfect behaviour among the resurrected in the new heaven and earth. Scripture never says that, actually. When we see -
Rev 21:4
"He will wipe away every tear from their eyes, and death shall be no more, neither shall there be mourning, nor crying, nor pain anymore, for the former things have passed away”, many of us assume that means there can be no more sin. There can be missing the mark, imperfection; but confidence in the merciful God and Saviour to readily forgive our imperfection, our mis-steps means we will not react as many do now, thinking God is angry with us and is just waiting for a chance to whack us hard. We will know god so much better then, and be so much more ready to run to Him after our failures to thank Him for His mercy to us.
That’s how I understand the verse.