Rev 22:1-2
"Then the angel showed me the river of the water of life, bright as crystal, flowing from the throne of God and of the Lamb through the middle of the street of the city; also, on either side of the river, the tree of life with its twelve kinds of fruit, yielding its fruit each month. The leaves of the tree were for the healing of the nations."
The river of life echoes Ezek 47 and Gen 2 — the new creation restores Eden and surpasses it. The tree of life (denied in Gen 3:24) is now accessible to all. The twelve monthly fruits — continuous abundance, never scarcity. The leaves for the healing of the nations — the cure for all human division and conflict.