The Concept of God’s Omniscience Is Just a Fear Tactic to Control Your Mind

Questions about whether the concept of God’s omniscience is just a fear tactic to control your mind and what to say to someone who thinks it’s possible for God to lie and that Jesus’ coming might have been an elaborate scheme to make us think he loves us. I would love to hear your thoughts on God’s omniscience. God uses fear tactics to control your mind. He loves you so much that he’s watching your every move and knows your every thought? Is this good? What do I say to someone who thinks it’s possible for God to lie, that he treats us like his playthings, and that Jesus’ coming might have been some elaborate scheme to make us think he loves us?