We have made only angels guardians of the fire, and we have only made their number a trial to those who misbelieve; that those who have been given the Book may be certain, and that those who believe may be increased in faith; and that those who have been given the Book and the believers may not doubt; and that those in whose hearts is sickness, and the misbelievers may say, 'What does God mean by this as a parable?' Thus God leads astray whom He pleases, and guides him He pleases: and none knows the hosts of thy Lord save Himself; and it is only a reminder to mortals!