Per your dismissal of my statement... Does God not understand what we need before we even ask? ...
You make the common (again, hubristic) assumption that we can put God into linguistic boxes. Can God create a stone so heavy that He can't lift it? Can God create a being that He can't destroy?
It is impossible to fully understand God, His actions, and His knowledge through human language. Even the Greeks couldn't do it, and their language was much more suited for this sort of thing than English. One can not hope to capture the infinite via a finite medium. This is one of the reasons Our Lord spoke in parables--so that we might better understand the Father and eternity through metaphor.
That said, please respond to this sentence:
It is impossible for God to heal someone at the behest of one of His saints in heaven.
That said, please respond to this sentence:...Well, we know what happened to the little boy who wouldn't fall down playing "soldier" and the little girl whose "dad could beat up your dad."
They grew up and got "saved."