Immortality means you are alive forever.
Who is the source of being alive [zao] forever?
Does it have anything to do with having eternal life [zoe] given to us IN CHRIST, who scripture says ALONE has eternal life [zoe] IN HIMSELF?
Immortality: To live | be alive [zao] forever (never dying or decaying). It's associated with the human body.
When God created Adam He gave him one commandment:
"Of the tree of the knowledge of good and evil, you shall not eat of it: for in the day that you eat thereof dying you will die." -- Genesis 2:17.
"And the serpent said to the woman, 'You shall NOT surely die.'" -- Genesis 3:4.
Adam evidently did not possess (his own) immortality, or have eternal life IN HIMSELF, but of Christ, the Son of God it is written that "He (Christ) alone possesses immortality" (1 Timothy 6:15-16); and "For as the Father has life in Himself, so He has given to the Son to have life within Himself" (John 5:26).
The Son of God alone can possess immortality, because the Creator alone has eternal life in Himself.
-- "I am the First and the Last, and the Living One,
and I became dead, and behold, I am alive for ever and ever, Amen.
And I have the keys of hades and of death." -- Revelation 1:17-18.
Christ alone can possess the keys of hades and of death, because He died, and rose again from the dead because death could not hold Him. He is the Word of God in Whom is life [zoe], made flesh (John 1:4,14).
Immortality - which is associated with being alive in a human body that does not die - is dependent upon having eternal life, but life exists IN God alone, and only because God exists. Without the existence of God there is no life. Paul said,
"In Him (God) we live | are alive [zao], and move, and have our being;
For we are also his offspring." (Acts 17:28).
No CREATED human being has eternal life in himself. The eternal life of any created human being who has been given eternal life is in Christ: Jesus told those who believed in Him:
"I am in my Father, and ye (will be) in me, and I in you."
(John 14:19b-20b)
It's "The mystery which has been hidden from ages and from generations, but now is made manifest to his saints, which is Christ IN you, the hope of glory." (Colossians 1:27).
--- I am the vine, ye are the branches. Abide in me, and I in you, because if a man abide not in me, he is cast forth as a branch, and is withered; and men gather them, and cast them into the fire, and they are burned, and as the branch cannot bear fruit of itself, except it abide in the vine; no more can ye, except ye abide in me. He that abideth in me, and I in him, the same bringeth forth much fruit: for without me ye can do nothing. --- (John 15:4-6, verses rearranged).
SIN OWNED
-- "For all have sinned, and come short of the glory of God." -- Romans 3:23
-- "By one man sin entered into the world, and death by sin; and so death passed upon all men, for that all have sinned."
-- "For he has made him to be sin for us, who knew no sin; that we might be made the righteousness of God in him." -- 2 Corinthians 5:21
-- "Who his own self bare our sins in his own body on the tree, that we, being dead to sins, should live unto righteousness: by whose stripes all of you were healed." -- 1 Peter 2:24
-- "All we like sheep have gone astray; we have turned every one to his own way; and the LORD has laid on him the iniquity of us all." -- Isaiah 53:6
We can either pay the penalty for our sin ourselves, relying on our own self-produced 'righteousness' which is mixed with our sin (which will result in everlasting damnation), OR change our minds, doing a complete turn-around (repenting) and turning to, and placing our faith in Jesus the Messiah, our only Messiah:
EVERLASTING LIFE OWNED
-- "In the beginning was the Word, and the Word was with God, and the Word was fully God. The Word was with God in the beginning. All things were created by him, and apart from him not one thing was created that has been created.
In him was life [zōḗ], and the life was the light of mankind." -- John 1:1-4
-- "For as the Father has life in Himself, so He has given to the Son to have life within Himself" -- John 5:26
EVERLASTING LIFE GIVEN
-- "And this is the record, that God has given to us eternal life, and this life is in his Son. He that has the Son has life; and he that has not the Son of God has not life." -- 1 John 5:11-12.
RIGHTEOUSNESS OWNED
-- "My little children, I am writing these things to you so that you may not sin. But if anyone does sin, we have an advocate with the Father, Jesus Christ the righteous One. -- 1 John 2:1
RIGHTEOUSNESS GIVEN
-- "And be found in him, not having mine own righteousness, which is of the law, but that which is through the faith of Christ, the righteousness which is of God by faith:
That I may know him, and the power of his resurrection, and the fellowship of his sufferings, being made conformable unto his death. -- Philippians 3:9-10
RESURRECTION OWNED
-- "I am the resurrection, and the life: he that believeth in me, though he were dead, yet shall he live:" -- John 11:25
-- "I am the way, the truth, and the life: no man cometh unto the Father, but by me." -- John 14:6
RESURRECTION GIVEN
-- "But now is Christ risen from the dead, and become the firstfruits of them that slept. For since by man came death, by man came also the resurrection of the dead. For as in Adam all die, even so in Christ shall all be made alive. But every man in his own order: Christ the firstfruits; afterward they that are Christ’s at his coming." -- 1 Corinthians 15:20-23
IMMORTALITY OWNED
-- "He (Christ) alone possesses immortality and lives in unapproachable light, whom no human has ever seen or is able to see. To him be honor and eternal power! Amen." -- 1 Timothy 6:15-16
IMMORTALITY GIVEN
-- "In a moment, in the twinkling of an eye, at the last trump: for the trumpet shall sound, and the dead shall be raised incorruptible, and we shall be changed. For this corruptible must put on incorruption, and this mortal must put on immortality.
So when this corruptible shall have put on incorruption, and this mortal shall have put on immortality, then shall be brought to pass the saying that is written, Death is swallowed up in victory." -- 1 Corinthians 15:52-54.
The difference between immortality and eternal life owned and immortality and eternal life given in Christ (who alone possesses eternal life and immortality in Himself), is as profound as the difference between (A) the Creator/the only-begotten Son of the Creator (God); and (B) created human beings.
"If anyone does not abide in Me, he is cast out as a branch and is withered. And they gather and cast them into the fire, and they are burned. If you abide in Me, and My words abide in you, you shall ask what you will, and it shall be done to you." -- John 15:6-7.
"And this is the record, that God has given to us eternal life, and this life is in his Son. He that has the Son has life; and he that has not the Son of God has not life." -- 1 John 5:11-12.
Immortality means you are alive forever.
Who is the source of being alive [zao] forever?
Does it have anything to do with having eternal life [zoe] given to us IN CHRIST, who scripture says ALONE has eternal life [zoe] IN HIMSELF?