From this statement I gather that you subscribe to the theology of Open Theism.
I have no malice toward your belief,all though I disagree.
I wouldn't say my beliefs are representative of Open Theism.
I do not believe God changes in any way.
I'm not sure how that is relevant to the teaching of guaranteed healing.
Christ bore our afflictions our sickness and infirmity that was a result of the curse of the Law.[see Deuteronomy for curse]
If you want to say the curse of sin is broken, why not also the curse of death? It's needlessly selective.
Paul affirms this in Galations chapter 3 vs 38.
Galatians 3 only goes to verse 29, so I assume you mistyped something there
God is no respecter of persons: [Acts 10 vs 34
Romans 2 vs 11]
Again I don't see how this is relevant to the teaching of guaranteed healing. God is not a respecter of persons - God has the absolute right to heal the pauper and not heal the king, to heal the slave and not the master, as he sees fit.
God does not Change:
Numbers: 23. 19. God is not a man, that he should lie; neither the son of man, that he should repent: hath he said, and shall he not do it? or hath he spoken, and shall he not make it good? 20. Behold, I have received commandment to bless: and he hath blessed; and I cannot reverse it.
Still not relevant to guaranteed healing.
So now we have to ask why would God heal some and not others?
Because God gets to decide what he does. It's one of the perks of being God I guess.
We do have a enemy ,a roaring lion going to and fro seeking who he may devour.{paraphrase}
Sure, but it's still not clear how that is relevant to the topic at hand.
No one in Word of Faith teaches that we live a trouble free life.
We know weapons will be formed against us but we deny by the Word of God their right to prosper.
Some teachers do seem to like messages incorporating a guarantee of financial prosperity, perfect health and the like. Maybe not an entirely trouble-free life but still not entirely in tune with "take up your cross and follow me".
We believe Christ work is a finished work all we are or will be was already done,including healing.
I think what WOF believes is quite clear by now, but restating what you believe doesn't add anything to the discussion regarding the merits or otherwise of that belief.
It still seems to me that this particular WOF teaching at least is trying to take things that are intended for the future and bring them into the here and now. The new heaven and the new earth is the place with no more sickness, no more pain, no more sorrow, no more death. That's for the future, not for now. Trying to take it in the here and now seems presumptuous at best.