This is proven by Jesus Himself in His one and only definition of the life He gives – John 6: 48 – 51 ” I am the bread of life. Your ancestors ate the manna in the wilderness, yet they died. But here is the bread that comes down from heaven, which anyone may eat and not die. I am the living bread that came down from heaven. Whoever, eats this bread will live forever. This bread is my flesh, which I will give for the life of the world. “
Jesus who should be our sole authority, describes “ eternal ” life as a dynamic relationship, the outcome of which is growth and change. Although, the adjective ” eternal ” is appropriate for God, it is certainty inappropriate for the believer’s life in God, because though God is of “ infinite duration, everlasting, timeless, perpetual and immutable. ” The believer’s life is one of continuous change over ” indefinitely long period ” of time. This process begins in the Spirit of the believer and requires time to be completed. A Christian may commonly speak of and desire to have eternal life, but it hardly seems possible that he should want eternal life now, or upon death until he is totally and perfectly conformed to the image of Jesus Christ.
Significantly, during the present age, while man is barred from the tree of life, God has provided another tree of life for the Salvation of mankind: The cross of Jesus Christ. Those who place their trust in His atoning work, the cross have eternal life.
John 3: 14 – 16 “…For God so greatly loved and dearly prized the world that He ( even ) gave up His only begotten ( unique ) Son, so that whoever believes in ( trusts in, clings to, relies on ) Him shall not perish ( come to destruction, be lost ) but have eternal ( everlasting ) life. ” Even though every man has been bitten by the serpent ( Genesis 3: 15 ), by merely looking upon this tree in faith, he will be healed ( Numbers 21: 9 ). In the eternal state, believers will once again obtain full access to the tree of life – Revelation 22: 2 ” Through the middle of the Broadway of the city; also, on either side of the river was the tree of life with its twelve varieties of fruit, yielding each month its fresh crop; and the leaves of the tree were for the healing and the restoration of the nations. ”