The thief cometh not, but for to steal, and to kill, and to destroy: I am come that they might have life, and that they might have it more abundantly. John 10:10
Extremes are actually the devil's playground. If he can't get a believer to totally ignore a truth and live in deception, his next tactic will be to get him so one-sided and out of balance with the truth that he is no better off than he was before. Sometimes he is even worse off than he was.