The question is a good one. It is usually focused on things like trinitary nature vs. divine simplicity or timelessness and God's action in time, or God's impassibility/ God's omniscience and the existence of counterfactuals of free creatures. But I will try to stay on the topic you offered us.
Coherency within a Christian viewpoint is arguably for Christians to deal with because they're the ones trying to claim the revelations are meant to be self evident with understanding about them and yet we have multiple interpretations of the same entity, leading to more obtuse problems of revelation
All loving contrasted with all-just. This doesn't seem to be much of an objection. I don't see that the definition of "love" necessitates eliminating moral standards so as to eliminate dealing out justice. If creatures are free to choose and have some sense of right and wrong the way every culture across the world across history seems to, then there is no internal contradiction in the slightest. No logical tricks are necessary, in fact we might have to rely on logical tricks to make this pair seem incoherent.
I never said love necessitated such a thing in regards to moral standards, but absolute manifestations of BOTH is where the contradiction comes about, since it's like being absolutely hot and cold at the same time, they necessarily come into conflict
Can one really say we are free to choose in a world where a deity supposedly has foreknowledge and sovereignty by its divine nature? If I program a robot and it can only behave as such, how is God's setting up the system where we must believe in Jesus to be saved and other qualifications in regards to how we choose, etc any different except in scale from me knowing all the possible actions my robot can make (assuming I didn't program AI or such)
Similarly, if God is sovereign he gets the world he wants. But there is no specification that every human action is necessarily what God wants. In fact we have a whole collection from over 40 authors that continually appeals to peoples free will. They are persuaded, to study, and memorize, learn and teach, and meditate, on correct ways of living and avoid incorrect ways. All of those thousands of references are impossible without free will.
If God's sovereignty allows that for a time free humans choose to serve themselves and not him, that doesn't impact sovereignty until God gets a world he didn't expect. There is no evidence that God is surprised at free creatures choosing to serve themselves. Nor is the world at end and God standing with a quizzical look on his face.
If God's plan can even remotely be interrupted, then it would suggest the sovereignty is far less than the absolute nature ascribed to it, merely that it can always course correct
The problem becomes that the correctness or incorrectness is less about demonstrable harm and more whether it conforms with the commands of an entity, authoritarian in its ontology of ethics
But how can God get a world they don't expect if they also have divine foreknowledge and could see all possible outcomes, Dr. Manhattan style?
Now on some forms of Reformed thinking (Calvinism) men are argued to not have free will. Or not have it in certain areas.
That version of Christian thinking with those presuppositions I do think is incoherent.
It means God created Adam and Eve and forced them to sin.
It means a being who by nature can't sin and hates sin created puppets and made them sin.
That is where I would go if I were you. It is incoherent and Calvin even thinks so in his Institutes.
But I'm a molinist and find no such presuppositions in the Bible.
Not so much that God forced Adam and Eve to sin, but created them knowing they would make those decisions, which barely seems different from what I'm gathering on Molinism as an attempt to rationalize between God knowing all and also somehow respecting human freedom. It's like a multiverse that God can just wipe away all the bad endings and fit it into a framework where it ends up working to whatever grand design it supposedly has for humanity rather than letting us condemn ourselves to utter destruction
To say humans are puppets would apply seemingly only if the idea is that there is absolute determinism as regards how events progress and that we cannot help but make choices, regardless of the source of our will being motivated by "Satan" or "god" respectively (as I've heard it generally presented. If we can still deliberate in some sense even in Calvinist thought, then we aren't so much puppets as we are disposed to be sycophants to a master of some form or another, which is abhorrent and morally bankrupt, I'd argue, since it reduces us to servants, which is almost worse than puppets, because puppets wouldn't necessarily realize their status if it's in our nature not to question
The Hiddenness of God argument are serious. Every person thinking about religious knowledge should engage them. It appears that many Christians have dodge this portion. I won't.
Whether it is Russell's Tea Pot floating in orbit around the world, or Schellenberg's version painting God as unloving because "non-resistant" "non-believers," exist, or Flew's Invisible Gardener all have several things in common. Firstly, in all cases we have non-believers. Secondly, there are various reasons for their non-belief that God could overcome, given his omni attributes. Thirdly an loving God would want to overcome non-belief so if he existed we would expect him to:
1. Eliminate evil
2. Provide enough evidence for each individual to come to belief
- (1)There are people who are capable of relating personally to God but who, through no fault of their own, fail to believe.
- (2)If there is a personal God who is unsurpassably great, then there are no such people.
- (3)So, there is no such God (from 1 and 2).
I think this argument works well in concert with the argument from evil and suffering. It should be its own topic however. I am out of time to give a full-throated response but will follow up and discuss further. I have to head to feed a barn-full of horses and do some barn work.
If God can just overcome any nonbelief because it's able to know what would convince ALL nonbelievers, then God is doing a terrible job at convincing more and more people to not disbelieve, and I've disbelieved since I was 17 or so, I'm 32 now, God's taking its time.
Eliminate evil seems like a strawman of particular misotheists who just hate God because they can only think an agent set up things so that their parent got cancer, etc, rather than a God that supposedly understands nuances of suffering that could make a world that would have that happen as little as possible. But ultimately the problem of evil, as I see it, is not for atheists to debate, but for theists to confront, because it's more their fundamental problem of having an agency that governs the world but simultaneously wants free will to exist, which would throw any idea of a plan into utter chaos even with divine knowledge, because you're constantly having to shift things around like a chessmaster to make it so you'll win in the end (and it gets more complex with shogi, from what I've read of a handful of manga centered on them, or even go)
If there was any such god entity as people describe, my problem is more with the coherency of the qualities ascribed, though I also find the cogency of the God concept itself questionable when it assumes a human-like agency rather than something that may not be a mind at all, almost more like the Force. And engaging with the God idea in an interesting sense is tricky in fiction, though I can't say I've read a huge amount.
Platinum End, a manga by the authors of the more famous Death Note series, looks into this (Death Note supposedly has God issues brought up as well in a sense, just not in the same fashion, more maltheist with the Death Gods). God is seen as such that it is moreso a human construct, though the exact nature of the entity that the characters are in a sort of competition to take over the position (because it can die, so clearly an entity of less than omnipotent power). If anything, a lot of the issues come into play because of our engagement with things that are unknown and not necessarily taking a step back and thinking they are impressive, but not going flat out to the worship angle, something I never found myself wanting to do even while in church as a teenager and less so as I studied religion as a young adult and continue to in a lesser manner.