74:31
And not We have made keepers (of) the Fire except Angels. And not We have made their number except (as) a trial for those who disbelieve - that may be certain those who were given the Scripture and may increase those who believe (in) faith, and not may doubt those who were given the Scripture and the believers, and that may say those in their hearts (is) a disease and the disbelievers "What (does) intend Allah by this example?" Thus does let go astray Allah whom He wills and guides whom He wills. And none knows (the) hosts (of) your Lord except Him. And not it (is) but a reminder to (the) human beings.