Surely Allah is not ashamed to set forth any parable-- (that of) a gnat or any thing above that; then as for those who believe, they know that it is the truth from their Lord, and as for those who disbelieve, they say: What is it that Allah means by this parable: He causes many to err by it and many He leads aright by it! but He does not cause to err by it (any) except the transgressors,

And the chiefs of his people who disbelieved and called the meeting of the hereafter a lie, and whom We had given plenty to enjoy in this world's life, said: This is nothing but a mortal like yourselves, eating of what you eat from and drinking of what you drink.