Mortality is the given as children of Adam since he ate of a particular tree he was told would cause him to die.
Ok, ok....a small discourse to set the scene....
Adam and Eve came from God's hand as did all Creation on our planet with God declaring it very good. Life was a given. It reflected God; his values, his principles and with mankind in particular, his very image.
The Garden in which the sexy pair lived, two trees were also present. One promoted life, the other we are told would impart the knowledge of good and evil, (if they ate of it) just like God; well, that was according to the wily Serpent we today understand to be the Devil. (incidentally, it was Jesus who gave us this insight....a connection heretofore unknown)
We can deduct at least a couple of things from the Serpent's assertion; that God knew (experienced) good as well as evil....in other words, he is dualistic. It (the Serpent) also implied that God had said things God had not said.
The story is in Genesis 3 for those who want 'biblical' and are unfamiliar with it.
We know what happened; they believed the Serpent and as per God's promise, diminishment became their trajectory. Firstly guilt and shame and fear and finally death (no no, not because of their genitals but because of their disconnect from God)..........and within the first generation, murder had openly manifested. Death and its ugly reality marred what God had initially declared very good.
That lie, 'you shall not surely die', by the Serpent (Genesis 3:4) in contrast to God's words, '....don't eat of that tree (that reality) for you will surely die when you do' (Genesis 2:17)
God does not know evil. God is not dualistic.
1 John 1:5 tells us, '...God is light and in him is no darkness at all.'
Death is alien to God's reality; it is an enemy. (1 Corinthians 15:26 ....50-54)
Dualism to which the Worlds religions subscribe, including much of Christianity and certainly OT writers is a lie. 'Eating' from this 'tree' will surely result in death. (cessation of life)
.....and to sum up my little blurb....at least for the moment,
John 10:10
'The thief comes only to steal and kill and destroy; I have come that they may have life, and have it to the full'
Wherever there is death and destruction we can know it is the work of the Devil (the serpent)......never the work of God, contrary to what many have believed and do believe .....even OT writers.
Life for those who want it becomes their experiential reality at the resurrection (1 Corinthians 15:50-55)
Prior to then, those who have died wait in the grave for that life giving call by the Prince of Life.....just as Lazarus did.