If you go back to Eden, there was no mention of 'heaven or hell'....only 'life or death'. Those were the only two choices.
If Adam and his wife had obeyed their God. they would have lived forever on earth, just as God intended. Sin led to death, not heaven.
No, that is not true. Salvation was not needed before man fell into sin. If they had obeyed and lived forever, no salvation would have been necessary. Christ's sacrifice would not have been needed to redeem those who had no sin.
Man was created with free will.....God did not prevent the humans from exercising it, or it would not have been free.
He did not prevent the devil from exercising his free will either.
Flesh was never designed to enter heaven....man is designed to live here on earth......and the earth was designed to support life in all its various forms. Man was to be earth's caretaker....made in God's image and likeness, he was not meant to die......there was only one cause of death mentioned to Adam......eating from the TKGE......so If he hadn't eat of the forbidden fruit, there was no natural cause of death.....there would have been no aging, no sickness and no evil.
The only ones chosen for life in heaven are the elect....and they are transformed into spirit beings (born again) at their resurrection, so as to be able to live in the presence of God. These alone will join Christ in his role as King of God's Kingdom.
It was the devil who rebelled first and dragged mankind into his web of deceit.....which started with a lie....
"you surely will not die", but God said that they would....so who lied? (John 8:44) Who is it that wants us to believe that we don't really die, but that we go on living in another form in another realm?....NOT GOD. He told Adam....
"In the sweat of your face you will eat bread until you return to the ground, for out of it you were taken. For dust you are and to dust you will return.”
No heaven or hell is mentioned here...
Any wonder that there is confusion...? There are so many who believe that we have an immortal soul that never dies.....that is just not true. (Ezekiel 18:4) There is no mention of an "immortal soul" anywhere in the Bible. It is an adopted idea from the pagan Greeks whose influence is still seen in many religions around the world who accept this idea. It is NOT a Bible teaching at all.
The ancient Jews (as opposed to the modern day ones) did not have any belief in an immortal part of man that lived on after death. They believed in resurrection which is a return to life, not a continuation of it.
Eccl 9:5, 10 tell us where the dead are....
"For the living know that they will die, but the dead know nothing at all, nor do they have any more reward, because all memory of them is forgotten. . . . .Whatever your hand finds to do, do with all your might, for there is no work nor planning nor knowledge nor wisdom in the Grave, [sheol] where you are going."
"Sheol" is the Hebrew equivalent of the Greek "hades"....which as you can see is not a place of torment, but a place where the dead "sleep".
Read the account of Lazarus who was resurrected by Jesus and see where Jesus said he was....
"After he said these things, he added: “Lazʹa·rus our friend has fallen asleep, but I am traveling there to awaken him.” 12 The disciples then said to him: “Lord, if he is sleeping, he will get well.” 13 Jesus, however, had spoken about his death. But they imagined he was speaking about taking rest in sleep. 14 Then Jesus said to them plainly: “Lazʹa·rus has died." (John 11:11-14)
Resurrection is waking the dead.....you cannot resurrect a person who is not dead....