If god is all knowing (Omniscient)...?

Play on words here. God is all knowing. God knows what the future holds for his people. Yes the future is predestined, but that is where we need to stop. God is not surprising us by our predestined future. He is open and upfront. IF you don't use your FREEWILL to follow my commandments, then you have made the choice of not joining me when it's time to open the book of life. Therefore praying makes the biggest difference in how your eternity is going to be spent