The Tree of Life stood in the midst of the garden of Eden (Gen 2:9). After the fall, access was guarded by cherubim with a flaming sword (Gen 3:24). Wisdom is called a tree of life in Proverbs (3:18, 11:30). Revelation 22 restores it: in the midst of the new Jerusalem's street, on either side of the river, with twelve manner of fruits, leaves for the healing of the nations.
The tree in the midst of Eden; access blocked after the fall; restored in the New Jerusalem (Rev 22).
The tree appears in Eden (Gen 2-3), in Wisdom literature (Prov 3:18, 11:30, 13:12, 15:4 — metaphorical), and in Revelation (2:7, 22:2, 22:14, 22:19) as eschatological reality.
Genesis 2:9 — "The tree of life also in the midst of the garden, and the tree of knowledge of good and evil."
Genesis 3:24 — "So he drove out the man; and he placed at the east of the garden of Eden Cherubims, and a flaming sword."
Revelation 22:2 — "In the midst of the street of it, and on either side of the river, was there the tree of life."
Modern Christianity often forgets the tree's Edenic and eschatological reality; the same tree blocked at Genesis 3 is opened at Revelation 22.
The biblical arc is unmistakable: tree planted, tree withheld, tree restored. Christ's cross (a tree, Gal 3:13) is the bridge between Eden's closed tree and Revelation's opened tree.
Hebrew etz hachayim.
Hebrew etz — tree; chayim — life; etz hachayim, tree of life.
"Tree planted; tree withheld; tree restored."
"Christ's cross is the bridge."
"Twelve manner of fruits; leaves for healing of nations."