Not so. I get it. I just disagree with it. I held Penal Substitution Theory for most of my life (and was a Calvinist for much of it).I do not think Jon is going to get it no matter what door we go through in order to show him.
Whatever was to take place relative to sin and God took place in Christ or it hasn't taken place.
Do you understand the difference between Medical Substitution and Penal Substitution?
I didn't at first (I didn't really think about it, really) but as a graduate student studying historical theology I learned of these men and their beliefs.
Before then it did not make sense how they could say that Christ died for our sins, God was pleased to crush Him, and Christ is the Propitiation for sins and then say Satan arranged the Ransom (Gregory of Nyssa), Christ was the bait Satan took as payment (Augustine), God paid the powers of darkness (Origen), Christ took upon Himself our humanity by his death (Gregory of Nazianzus)....
But once you understand how they viewed substitution then what they were saying makes sense (even if it is incorrect).
My point here is that until you understand what you are arguing against you have no real argument.
So please explain to us the difference between Gregory of Nazianzus' Medical Substitution and Penal Substitution.
Looking forward to your reply.