You will closely note I stated Ezekiel Chapters 40-46 is the Zerubabbel Temple built in 536BC
You then jump to Ezekiel Chapter 47 talking about a stream flowing, and trees beside the stream?
Ezekiel Chapters 47-48 represents (The Eternal Kingdom) in the New Heaven, Earth, Jerusalem,
Ezekiel 47:12 is showing the (Eternal) River And Tree Of Life, Also Seen In Revelation 22:1-2, Same River, Tree, Fruit, Leaves For Healing/Medicine.
(The Eternal Kingdom)
Ezekiel 47:12KJV
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.
(The Eternal Kingdom)
Revelation 22:1-2KJV
1 And he shewed me a pure river of water of life, clear as crystal, proceeding out of the throne of God and of the Lamb.
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.