The assumptions I refer to have been taken from the scrolls and texts for a couple of thousand years. Seeing God through various lenses is nothing new and much of the NT is laced with warnings about those that creep in with unorthodox views. To see the God of the Bible as lacking in any way, leads to a long list of compromises.Never assume God's attributes, but allow scripture to define them. Also, if God has chosen not to know certain outcomes in the future, why does that make him less powerful? Nobody is saying he cannot know all future outcomes, but that he has chosen not to know all future outcomes.
Good luck with that.