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 he said: You have only taken for yourselves idols besides Allah by way of friendship between you in this world's life, then on the resurrection day some of you shall deny others, and some of you shall curse others, and your abode is the fire, and you shall not have any helpers.