When the Jews accepted The Torah at Mount Sinai it was also offered to all the other nations and they declined.
Ok, but before that. What does the Torah say about before that?
Before that...
The Torah is not a history book; it's a moral document.
God creates existence filled with almost endless delights for the mind, soul and body and asks for simple in return...
Appreciate Me.
I'll tell you what, eat whatever you want from the seemingly endless number of trees I have provided for you...
Just show your appreciation by not eating from ONE tree.
Does it matter if it was a tree?
No; but that's what God decided on.
And let's not lose sight of the fact that Adam & Chava (Eve) had every opportunity to eat from the Tree of Life; but they didn't.
The Tree of Life may have had prerequisites to eating from it.
For instance, you CAN eat from the Tree of Life if you DON'T eat from the Tree of the Knowledge of Good & Bad.
Prior t eating from the Tree of the Knowledge of Good & Bad, they full well knew the difference between True & False.
By violating God's request, they caused themselves enough tension to cloud their judgment.
After all, try telling your boss you just embezzled several hundred million dollars without first working on an elaborate plan to hide your embezzlement.
Adam and Chana and Kayin (Cain) didn't live up to the standard required to have exposure to the Tree of Life.
Noach (Noah) ALMOST made it but couldn't handle the devastation of humanity he didn't pray for to save.
It took 10 more generations for God to find ONE person to achieve entry back to the Garden...Avraham.
I think God would have been happier if he could focus on MILLIONS of people rather than just ONE.
And so prior to the giving of the 10 Commandments, NO ONE was offered the job.
DURING the giving of the 10 Commandments, the WHOLE world was offered the job.
Only the Jews accepted the position.