We have appointed only angels to be wardens of the Fire. We have specified their number only as a trial for those who are bent on denying the truth, so that those who were given the Book might gain in certainty, and those who believe might increase in faith -- and so that neither those who have been given the Scripture nor the believers might have any doubts, and that those sick at heart and those who deny the truth might ask, "What does God mean by this parable?" In this way, God lets go astray whom He wills, and guides whom He wills. And none knows the forces of your Lord but He. This is but a Reminder for man.