Then what about these, seems more than 'belief' is required, even for the mentally ill?
"Nevertheless, a certain one will say: “You have faith, and I have works. Show me your faith apart from the works, and I shall show you my faith by my works.” 19 You believe there is one God, do you? You are doing quite well. And yet the demons believe and shudder. 20 But do you care to know, O empty man, that faith apart from works is inactive? " Ja2:18