Mark Quayle said:
That's a simple fiction.
Demonstrate just one choice anyone has made that is uncaused. Show how it is actually spontaneous, arising for no reason whatsoever, out of nothing.
Nothing comes from nothing.
Whether we are nothing (to which I agree—we are not nothing) is irrelevant to your point. It does not make any choice we make uncaused. It only makes the choices willed. And the Bible is very specific about the slavery of the will to sin and the flesh, or to Christ. That we do choose, does not prove free will.
I quote you, adding the strike-through: "
The prodigal son had the free will choice to stay in the pigsty starving to death (getting what he fully deserved) or go to his father in hope of totally undeserved Love." See? The sentence works just as well, without the words, "free will", in it.
That we do not understand why it seems free does not mean that it is free—i.e., uncaused. The Bible teaches actual, real choice, and the responsibility to choose right. It does not say that we do so uncaused. That we do so according to our will actually should show us that we do so according to our inclinations and desires and preferences. We always choose according to what we prefer at that instant of choice. That preference, and that choice, is the result of myriad causes.
And the fact that choice (or anything else, for that matter) is indeed real is only by God's establishing it. Thus, no matter your theology, if your theology admits that God is indeed omnipotent, self-existent, first causer, that choice is logically necessarily established by God.