We all know the story - after wandering around for a little while, Jesus goes off to pray in a garden, is personally tortured by God, and then immediately afterward is apprehended by the Romans and after a brief trial was whipped bloody, crowned with thorns, and executed via crucifiction. As far as I know it is universally accepted that not just the Gethsemane torture but the entire thing was deliberately orchestrated by God, nominally for the purpose of ensuring everyone’s salvation somehow.
I’m interested in the ‘somehow’. Taken at face value, what we have here is a straightforward scapegoat sacrifice - one person takes the punishment that another person deserves, and the other person’s accounts are then considered settled despite they themselves not having endured punishment. Originally this was apparently done by trying to deflect your sins onto an actual goat. One gets the idea that the one dispensing punishment is pretty dim to be so easily fooled; the most charitable interpretation is that the person meting out punishment simply doesn’t care who gets punished, as long as the punisher gets to punish somebody. Regardless, scapegoat sacrifices are not and cannot be about justice being served; they are explicitly an abrogation of justice.
Now, back in the good ole’ days, it was pretty standard to try and sate your deity’s rages and hungers with something other than your own flesh; the dieties in question were rather explicitly unjust and capricius beings who would happily smite you beyond reason if annoyed, but could maybe be distracted with a lovely roast animal instead. There are shades of this in the old testament; the sacrifices are made to curry favor and show appreciation to God, and he is a few times described as being directly pleased by the savory smell (and taste?) of sacrifical meat on the barbecue. There is no need to imagine a complicated redemption system here; you piss off God with your sins, and then make him a tasty dinner to get back in his good graces. One hardly needs to invoke the sacrifice as being a scapegoat - it’s just a bribe, simple as that. God accepts the sacrifices because he likes the sacrifices themselves.
And then we get to the whole Jesus thing. If you attempt to extend the above explanation to include Jesus, things start getting weird - you have God torturing and killing Jesus because he likes torturing and killing Jesus. Presumably when Jesus asked the cup to be taken from him God laughed maniacally and shouted, “No chance - drink, you bastard, drink!” And if you take the literalism of God accepting sacrifices because he likes the taste literally, well, suddenly communion makes starts making sense. ‘This is my body, eat of it’ indeed.
Of course, you don’t hear things along those lines in most major churches - at least not the ones I’m familiar with. Which means that most people probably don’t think that the Jesus sacrifice was supposed to make God directly happy or satisfy his hungers. The question is, though, what exactly was accomplished by Jesus being tortured and killed? Is it a scapegoat sacrifice, with God compulsively lashing out due to sin but not caring that an innocent is being hit? Is god trying to trick himself into thinking that all the guilty were punished, when in reality only Jesus was? Or is there a higher power above God that is able to demand and compel that punishment occurs - but is so stupid that they don’t notice the wrong person is getting it? Or perhaps this higher power simply hates Jesus so much he’s willing to forget about everyone else as long as Jesus gets put through the wringer for a weekend?
If one posits that someone other than God is demanding the sacrifice, the candidate that springs to mind is Satan, since one presumes that Satan is sort of miffed with God and Jesus and would enjoy seeing them squirm. However for this to be the case Satan would have to have power over God. Not just over man, but over God himself - when Satan came calling God would have to be unable to just tell him to go to Hell. Now, I know that some people actually do embrace this model - but I don’t get the idea that this is the norm nowadays either.
So. How do Christains explain the need for the torture and death of Jesus, and the mechanics by which it ensures human salvation? Or do they? Full disclosure: I was raised in a Christian environment, and even though it didn’t take with me and I was a fully aware atheist by the time I left my teens, it took the better part of the next decade before I sloughed off enough of my upbringing to realize that in addition to being untrue, Christianity’s core tenent literally doesn’t make sense, even on its own terms. That’s just how ingrained into my upbringing and environment the Jesus thing is. So I can certainly understand if most people haven’t given it a moment’s thought. But surely some Christians have - so how do they explain it? What did Jesus’s sacrifice do, that couldn’t be accomplished some other, less barbaric way? Explain this to me in a way that doesn’t fall apart on cursory examination, please?