Reference: Tree of life
Easton
stood also in the midst of the garden of Eden (Ge 2:9; 3:22). Some writers have advanced the opinion that this tree had some secret virtue, which was fitted to preserve life. Probably the lesson conveyed was that life was to be sought by man, not in himself or in his own power, but from without, from Him who is emphatically the Life (Joh 1:4; 14:6). Wisdom is compared to the tree of life (Pr 3:18). The "tree of life" spoken of in the Book of Revelation (Re 2:7; 22:2,14) is an emblem of the joys of the celestial paradise.
See Verses Found in Dictionary
And out of the ground made the LORD God to grow every tree that is pleasant to the sight, and good for food; the tree of life also in the midst of the garden, and the tree of knowledge of good and evil.
And the LORD God said, Behold, the man is become as one of us, to know good and evil: and now, lest he put forth his hand, and take also of the tree of life, and eat, and live forever:
She is a tree of life to them that lay hold upon her: and happy is everyone that retains her.
In him was life; and the life was the light of men.
Jesus said unto him, I am the way, the truth, and the life: no man comes unto the Father, but by me.
He that has an ear, let him hear what the Spirit says unto the churches; To him that overcomes will I give to eat of the tree of life, which is in the midst of the paradise of God.
In the midst of the street of it, and on either side of the river, was there the tree of life, which bore twelve manner of fruit, and yielded its fruit every month: and the leaves of the tree were for the healing of the nations.
Blessed are they that do his commandments, that they may have right to the tree of life, and may enter in through the gates into the city.