It originated with Adam.
We inherited his nature from the flesh we were born with.
Sin entered the world by means of one man...
Therefore, just as sin entered the world through one man, and death through sin,
and in this way death came to all people, because all sinned."
When it says, "
because all sinned?"
Without knowing what the Greek states one would be confused as to what that is meaning.
The Greek is saying that we all sinned
in a single point in time!
That single point in time was when Adam ate of the fruit!
How is that? For Adam's fallen nature was passed down to all mankind by means of sexual reproduction.
In sexual reproduction a man and women produce a fallen body.
Yet? God creates each soul that enters the fallen bodies that are born.
Those are details that some still fail to see.
Some assume that that father and mother produce a human soul in sexual reproduction.
It's only the body that they produce.