Now he said:
"Hmm…so he knows what we are going to do no matter what. He knows what we will do before we do it, so there is no way to change our minds. We (in a way) have to do it.
Sounds a lot like fate to me."
The weakest part is between “He knows what we will do” and “so there is no way to change our minds.” I would argue that He does try but He does not force. Your discussant will argue that if He does not force it is because He cannot force, and your counter should be He does not force because He desires that we willingly follow Him, and that He condemns only for willingly disobeying Him.
There’s a difference between knowledge and cause - one is prescience (pre-knowing) and the other is predestination (pre-causation). The key question is not “who knows it” but rather “who
does it”.
If I observe an sign in front of a vacant lot that says “Coming Soon - Dunkin Donuts!” I expect there to be a Dunkin Donuts store in the near future. That does not mean I cause it, nor that it is fated.
Likewise, if I am given a parametric equation that describes a stochastic system, I can predict the resulting values of that system given the parameters. I do not cause the system, but I can understand the outcome before the system is simulated.
Here is where I suspect your discussant is confused.
God created all things. Agreed? Does God cause all things?
Let’s assume for the moment He does. Consider that last night a local college student was grabbed, pulled into an alley, mugged, raped and beaten. Did God make the man do it - not just make him but indeed direct his every motion and movement like some puppet?
If God did, then God wants the rape to happen. But we know from Scripture that God is offended by sin. So God cannot enjoy sin.
If God did, then the man is not at fault. If God does not punish him, then God is not just. But we know from Scripture that God is just.
If God did, and God is offended by sin and punishes the guilty, then God’s punishing the rapist makes God capricious. But we know God is just, that He loves the repentant sinner.
We must conclude, then, that God had foreknowledge and
hates the action before it is done. What we cannot know is whether the rapist heard the voice of God ordering him not to, or instead listened to some Satanic voice.
Relating back to the question at hand:
God will let us walk into the very mouth of Hell but will scream at us the entire way. If we do not hear Him, it is not through lack of volume but rather willfull ignorance.