Ok, Mel, so I think I can keep this under a few thousand pages.
(edit: okay, maybe not, but I've tried!)
So there are several distinct issues your post touches on. I'll just touch on them briefly, and you can respond to the one(s) you think are most relevant to what you are thinking. Fair 'nuff?
1. Interpreting Isa 55:9 and related passages - I'll take it that you agree with me that the actual meaning of the text as it is written is referring to the evil nature of the thoughts of the people God is speaking to. You go on to talk about other meanings in the text and God's transcendence . . . first, I deny that there are ever "other meanings." There is always and only one meaning to any text (except and unless the author obviously intends a double entendre). There are multiple applications of any given text, and there are multiple implications of any given text (related concepts, but distinct), but there is only one meaning. Isa 55:9 is not talking about God's trascendence. There are, of course, verses that do. If you want to switch your argument to base it on one of those other texts, then that's fine. But I'd encourage you not to do the thing where rather than working out the implications of the verse you yourself cited you go and want to talk about another verse, and then just move on to another and then another and so on. The texts mean what they mean. No need to keep bouncing all over Scripture.
2. On transcendence - I agree with everything except this, "Gods transendence doesn't mean we shouldn't bother reasoning but it does mean that
His ways transends our reasoning." If you mean that as you wrote it, I object, and I want you to demonstrate that from either Scripture or logic. No verse I know of says that, and if you try to make a logical case for that, the very logical case will refute your argument. I think the statement is, then, self-defeating. I'm not suggesting that we can know the reason God does anything in particular. I am suggesting that it is absurd to suggest that what God does is in some sense arational.
3. On impassibility - I think you are drawing incorrect conclusions on the matter. God is not impassible because He is a rock that cannot be effected. He is impassible because He is active and all effects proceed from Him. To suggest that God is
effected (or affected) means that God is not the First Cause after all, for that which is effected by something else is in some sense dependent on that something else. If God is effected by us, He is dependent on us for His state of existence (for without us, He would not exist in the way He now does due to our effecting Him). But if God is dependent on us, then He is a contingen being, and therefore, both God and we are dependent on something that is absolutely necessary in every way, and
that thing would really be God. This is important, because when we say God doesn't have emotions, we aren't suggesting that God doesn't care about us or doesn't love us. It doesn't lead to deism. It especially doesn't imply that God is somehow controlled by His emotions and still less that God's "emotions" conflict with one another.
More to the point, I flatly deny that God has emotions. You make a big deal about God being able to "feel." Look very closely at your language. If God can "feel," then He necessarily is having some sort of
somatic response. But that's absurd. God is spirit.
All feelings are somatic. "I feel tired." "I feel bloated." "I feel sick." "I feel the keyboard." That's even true of emotions. "I feel love." "I feel angry." "I feel sad." All of those are psychosomatic responses to some external stimulus. For simple proof, think of some things that are
only mental. Do you "feel" ideas? I'm not asking if you have feelings about any general idea. Think about the idea of triangularity. Do you "feel" triangularity? Of course not. What about the mental faculties? Do you "feel" imagination? Nope. Your imagination--the content of it--may make you feel something. But you don't feel imagination. It's strictly mental. Do you feel your will? No. You may feel things that lead you to will this or that, but the will is not felt, because, again, it is the body that feels, just as much as it is the body that sees, the body that hears, the body that smells, and the body that tastes.
I'm sure you recognize that God "sees," but not in the same sense we do. The word "see" is a metaphor. And just so with "feel." God doesn't feel. That's just a metaphor. As such, God doesn't have emotions. All of that is just metaphor. Which leads to . . .
4. Language about God - I don't agree that anthropmorphisms and anthropopathisms make language about God meaningless. There
is something in God that corresponds to our words "love" and "hate" and so on (stictly, given divine simplicity, God's essence can be thought of in a way that corresponds with those words). We don't have a direct knowledge of that precisely because we do not have a direct knowledge of the essence of God. But we have a proximate knowledge of that essence because our metaphorical language
is meaningful, even if it is in the end lacking. And lastly
5. God and time - this is a huge issue. But to answer your last question, the reason God can't have affections without implying change is because all affections, by definition, are changes. Not even God can do or be something self-contradicting, because such a "thing" is not a "thing" at all. It is a non-thing, a nothing, and thus, literally, such sentences are meaningless. We might as well ask if God can aoiawlhf2oihweowh. Just because we treat such sentences as if they have meaning, it does not follow that they do. Anyway, the logic is simple enough. If God is atemporal, as you note, then God does not change from A to B (as that would entail temporality). Therefore, God does not change at all. (Your missing premise -->) to feel is to respond to some external stimuli and all responses are changes. Therefore, God does not feel.
Look, here's the bottom line: I'm afaid you are conceiving of God as
a being who is somehow "beside us." (Later, K uses that very language.) But that is incorrect. God is NOT a being. He is not "beside" us. All metaphors fail on this point. We can say God is the canvas on which we exis, but even that is insufficient, for that would imply that God has what philosophers call a real relationship with us and therefore changes to us would necessitate changes to Him insofar as He would be differently related to us after our change than He was before our change. You have to get
all of that out of your mind. Please notice that the first thing God tells us about Himself in Scripture is that He is Creator. That is, He is the Cause of all that is. Try hard to let that sink in, and when you think you've got it, let it sink deeper. God is literally closer to you than your soul is to your body, for it is He who is causing your soul to be and He who is causing your body to be and He who is causing them to be united in the being that is you. But He is not somehow "outside" of you, "over there" as it were, causing you to be "over here." For both "here" and "there" are merely places that God is causing to be. Moreover, God is not "spread out" like a fog or a midst covering a field. He is
entirely present--
ALL THAT HE IS at every single point in space and time, because that is what God is -- God is causing that space and time to be. To suggest that God is somehow a being, that He is beside you, then, is to make a huge category error. You may as well ask what blue tastes like. You want to know what God "is"? First, realize the sentence "God is" is redundant, and second, let your mind think about anything at all, and go as deep into it, as fundamentally as you can, down to its smallest piece, and even beyond
that, the very existence that holds it in being (again, notice the redundancy there) is and must be contingent and being granted by something that is "below" that--not spatially or temporally, but metaphysically. The very essence of existence subsisting in itself! Get there, and you've gotten closer to the nature of God, or as Scripture says, the "I AM." Again: I AM! No past. No present. No future. And here's the big thing: no qualifications. No predicates. God is not this or that. He just is. That's not a statement of His existece--that would be a predicate. God is not affirming His existence there. He is telling us something abotu His nature. God is the unrestricted act of being, and I would submit to you that your fundamental error, as understandable as it is, is that you are making God a restricted being. Albeit a very powerful restricted being, but restricted, nonetheless. If you can get away from that, which is so very hard because everything in our reality is restricted being--some existence being this way or that way--but realize that even that means that there must be Unrestricted Being Subsisting in Itself. And that is what we call God. Get that, and I think everything else begins to work itself out.