We have appointed none but angels to guard the Fire, and made their number if subject for dispute among the disbelievers, so that those to whom the Book was given may have certainty, and the believers increase in faith; that those to whom the Book was given, and the believers, may have no doubts; and that those in whose hearts there is disease, together with the disbelievers, may say: “What does Allah mean by this?” Thus Allah leads astray whom He will and guides whom He will. None knows the warriors of your Lord but Him. This is nothing but a reminder to mankind.