Upgrade your God.
There is only one theory I've ever seen that would allow for the possibility that some people are just doomed and nothing is going to change it:
Here in the modern world, we have video games. In the massive online games, you have "players" which are characters played by real people sitting at computers who interact with each other, and "NPC's" (literally "non-player characters") which are characters that look and (to a limited programmed degree) act like players, but which are entirely computer generated and controlled. The NPC's aren't real people. The better programmers get at this technology, the closer we come to interacting with a machine that really *seems* human.
It is possible, I suppose, that God has put some creatures on this earth which fall into a category that is similar to that of an NPC. They may look human and act human, but what if they are not? I would not presume to be able to identify them, and I can just see the "opportunity" to twist such an idea to rationalize sexism, racism, elitism, and any of a dozen other isms that already trouble the world.
But... how exactly does a LOVING God look at a mother and say "Ok..you're going to have two children. One of them is going to be an absolute nutcase who murders and turns to paganism and believes he's a god and so on. But hey, he'll be Pharaoh of Egypt someday. Your other child (not even from your womb) will be My prophet, will bring the codified Law to My people, etc. He's gonna murder some guy too early on, but I'll let it slide for him because the guy he kills isn't very nice and is pagan...like you. That sound good to you pretty little mommie-to-be?
Ok..maybe God would do that to a pagan woman, I mean she's "just" a pagan...but what did He have to say to Eve about how Cain turned out?
"Well ya see...I didn't like Cain, so when I created him, I specifically made him twisted and jealous and put murder into his heart. Abel was a sweet kid, sorry about the whole death thing, here...have Seth..this makes it all ok right? Stop crying. This all has a greater purpose. No really, it does. All my other little pre-programmed pre-ordained children will "learn" from this story. Even though they can't really learn anything or ever have a change of heart because I've hard-coded it all. Actually it's really your fault for the thing with the apple. Even though I created you to eat it via pre-destination. Stop crying!"
If you can't imagine God saying something like that, why would you entertain to malign His character by suggesting that He would *do* something like that? You *might* be able to add such NPC humans to the world directly, but having them be born to mothers that will probably love them is a bit cruel.
I worship a better God than this.
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Look, I'm fully willing to accept that my concept of Justice and Mercy isn't complete enough to wrap around God's actions. For example, I don't know why it's a *sin* to eat pork or wear clothes with two different types of fabric woven together. I *do* know that I'm not going to Hell because I've eaten pork or worn such clothing, nor am I in any hurry to become a Messianic Jew and swear off all future bacon and 50% polyester pants!
There are no less than FIVE separate and distinct judgements described in Revelations. Every man, woman, and child who ever walked the earth is *going* to be resurrected to show up to one of them. That's an *awful* lot of pomp and ceremony for something that's already a done deal.
If Predestination boils down entirely to God creating people who are *going* to go to Hell and *going* to go to Heaven...then Satan *can't* tempt anyone, and the whole fruit episode in Eden was rather silly, Christ's death and resurrection was a meaningless dog and pony show, and all of the unfolding of Creation from beginning to end is nothing more than a complicated game of Solitaire.
Ask any five year old if they want to play a game called "heads I win, tails you lose." They will think about it a bit, figure out they *cannot* win, then tell you (with varying degrees of upset) that the game is unfair.
Let the little child lead you. This is not justice. Everyone with more common sense than God gave geese KNOWS this isn't justice. It isn't mercy either. Yet many verses have already been (mis)quoted that would seem to indicate that this was how things work.
I suppose it's a possible structure for the universe, but it's a rather dreadful one.
Imagine building a large tank that slowly fills with water over people's heads. Put 10 people in the tank. Put chains on the ankles of however many people, let's say half. Now go preach the "Gospel" to all 10 and start filling the tank. Is *anything* you are saying able to help the five people in chains? If the chains are unbreakable because God ordained it be so...what is the point of the Gospel? Or the sacrifice of the Lamb? Or His resurrection?
Under this system, no one is saved. No one *can* be saved. It's just a numbers game and the outcome is ultimately independent of sin, death, and the devil, to say nothing of being independent of Christ. People don't end up with chains on their ankles because they sinned and turned away from God...people sin, mindlessly, mechanically, because God put chains on their ankels.
Predestination therefore neuters the worth of the Great Commission to spread the (now pointless) Gospel and effectively nullifies Christ's own purpose in coming here (to save mankind). That means it's a "doctrine" which is against Christ. Another word for against is "anti-"
Sending Jesus to suffer and die makes no sense under this system. It doesn't change anything. Everything is fixed. Immutable. Done. Dead.
I worship a better God than this.
If you don't, you should upgrade.