But 2 answer the question,we shall take part in the tree
Revelation 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 omanner of fruit; and yielded her fruit every month: and the leaves of the tree were for the healing of the nations."
"In" in the Greek text, "en" governs only the case (the dative) and denotes being and remaining within to give rest on a continuance. It has regards to a place and space as in Matthew 10:16, and a sphere of action in Romans 1:5, 8. It also denotes a continuance in time as in Matthew 2:1 and John 11:10.
The "tree of life" is our Lord Jesus Christ, who we read about in Genesis 2:9. Well, how can that be? Remember in Revelation 21:6, he said, "... I am [always was] Alpha and Omega... ". Jesus existed prior to becoming a baby in the manger in Bethlehem. However, this "tree of life" is a certain tree, providing not only fruit for enjoyment, but its leaves give a divine provision for preserving and restoring health, specifically for the nations.
Ezekiel 47:12 "And by the river upon the bank thereof, on this side and on that side, shall grow all trees for meat, whose leaf shall not fade, neither shall the fruit thereof be consumed: it shall bring forth new fruit according to his months, because their waters they issued out of the sanctuary: and the fruit thereof shall be for meat, and the leaf thereof for medicine."
As we saw in Revelation 21:4, all former things are passed away, and there will be no sickness or sorrow.
Revelation 22:3 "And there shall be no more curse: but the throne of God and of the Lamb shall be in it; and his servants shall serve him:"
Revelation 22:4 "And they shall see his face; and his name shall be in their foreheads."
There will no longer be any cursed thing, for all cursed things and peoples' souls which were against God are ashes. Even their memory is gone. The only thing on the minds of God's children will be to love and serve God, and praise Our Lord Jesus Christ. Both will be in person, living and talking with the saints.
Whatever questions you will have about the trinity, eternity, or any other subject will be clear at this time, for there will be no confusion.
In verse 4, we see the same marking you have in your forehead will be here following the Millennium age and the great white throne judgment. This marking will not allow you to worship Antichrist, for Satan will not have any part in the eternal age. That marking in your forehead is in your mind. You know Jesus Christ comes at the seventh trump, following Satan's reign on earth, and that no flesh can stand in Christ's kingdom. God has given us His truths in His word (Bible), and all of God's children will know Him. It's sealed in their memory.