Bahman thinks that Partinobodycula articulates the issues he’s grappling with. I’m not sure I agree; P’s objections, I think, stem from certain misunderstandings and anthropomorphisms…
what I can’t comprehend is how an unchanging, timeless God could be anything more than an impersonal element of the natural world, incapable of thinking, or feeling, or creating.
God is not an “element of the natural world”; He’s outside of it. Therefore, an appeal to the nature of God that presumes that He has the same characteristics as created beings is doomed to failure from this invalid premise…
It seems rather self-evident that sentient beings must experience time, even if it’s not the same time that we experience.
How so? If it’s self-evident, then there’s a natural, obvious explanation. Can you provide such an explanation? Remember – you’re talking about “sentient beings”, not humans, so your answer can’t be bound up in human experience (or even, in the experience of a created being)!
At least to me, the claim that God is a timeless being cannot be left to stand unchallenged. If someone wants to make this claim then they need to explain how an unchanging God can have the capacity to do anything.
Aquinas would counter that, in a certain sense, you’re absolutely correct! God doesn’t have
capacity – or ‘potential’, as he’d phrase it. Rather, God is pure
act. There is no potential that God has not actualized. He
is fully actualized potential. Therefore, since He is fully act, there is neither change in God nor capacity to do elsewise. (Now, what we
perceive as God’s unfolding acts – that is, potentiality becoming active – is a perception that’s based on the fact that we experience reality in a temporal framework. God isn’t within this framework, however, so our perception doesn’t fully reflect His reality, but rather, simply how we perceive Him and His actions.)
You need to explain how a sentient, thinking, feeling being can function without time.
God doesn’t ‘think’, either – or, at least, He doesn’t ‘ratiocinate’ (that is, He doesn’t have linear chains of thought in the way that humans do). This isn’t a new idea – it’s all there in Aquinas’ writing, if you wish to immerse yourself in his thought. A number of contemporary authors have done a great job of making Aquinas’ arguments more accessible to a modern audience – Feser is one of them.
(And, also, God doesn’t ‘feel’ in the way that humans do, either. Again, your objections stem from a certain anthropomorphism of the notion of ‘being’, and project our experience as humans onto what you expect all beings to experience.

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Reading your objections, P, it appears to me that you are extrapolating from human experience and expecting God to share in that experience in the way that we do. It seems that you perceive God as acting in the same modes as humans do. This doesn’t hold up under scrutiny, and therefore, I think that you need to consider that God is fundamentally different from humans, and proceed with your questions from that perspective…