But what is eternal life?
God says
"I am the way, the truth, and the life. No one comes to the Father except through Me."
The Gospel of John
Chapter 14, Verse 6
"He who believes in Me has everlasting life."
The Gospel of John
Chapter 6, Verse 47
The life was manifested, and we have seen, and bear witness, and declare to you that eternal life which was with the Father and was manifested to us.The First Letter of John
Chapter 1, Verse 2
That means
In one sense, eternal life is what its name suggests: unending life. After all, if eternal life could be lost, then it is misnamed, because it wouldnt really be eternal. All who have eternal life will live forever in Gods kingdom. No one who has come to faith in Christ will ever go to hell. Once you believe in Christ, your eternal destiny in Gods kingdom is guaranteed.
In another sense, eternal life is not merely unending life. It is the life of God. Indeed, John refers to Jesus Christ Himself as eternal life. Eternal life is Gods kind of life. It is life that comes from God. Thus a person who has eternal life has Gods life within him.
It is obvious from what we have just said that eternal life doesnt begin when we die. Jesus said, "He who believes in Me has [present tense] everlasting life." He didnt say that the one who believes in Him will have (future tense) everlasting life. He said that he has eternal life--from that very first moment of faith. Thus a brand-new believer has Gods life, which is unending and full of potential.