And We have appointed none but the angels to be wardens of the Fire. And their number we have made only a trial for those who disbelieve, so that those who are vouchsafed the Book may be convinced, and that those who believe may increase in faith, and that those who are vouchsafed the Book and the believers may not doubt, and that those in whose hearts is a disease and the infidels may say: what meaneth Allah by this description! In this wise Allah sendeth astray whomsoever He will, and guideth whomsoever He will. And none knoweth the hosts of thy Lord but He. And it is naught but an admonition Unto man.