I grew up going to church but I’m not religious now and I never really understood this part.
Please, no answers along the lines of “aha, that’s why Christianity is a sham” or “religions aren’t logical”. I don’t want to debate whether it’s right or wrong, I just want to understand the logic and reasoning that Christians use to explain this.
Omniscience and free will are contradictory but only if you feel like you should be bound by the laws of logic.
Writ on a broader scale, if someone has power over you (say a government) but chooses not to get involved when you do something, is that free will? Or have they just not prohibited the action you chose to take? I think you have to scope what you mean by free will for there to be any semblance of it given how nebulous “will” can be. If you believe that outcomes are even to some degree deterministic (say, for example, we are predisposed a certain way because of our background, but may act differently because of our beliefs), then it is compatible with a definition of Free Will that has an omniscient being knowing what we will do.