indeed allah is not ashamed to draw a parable whether it is that of a gnat or something above it. as for those who have faith they know it is the truth from their lord and as for the faithless they say what did allah mean by this parable? thereby he leads many astray and thereby he guides many and he leads no one astray thereby except the transgressors
إن الله لا يستحيي أن يضرب مثلا ما بعوضة فما فوقها فأما الذين آمنوا فيعلمون أنه الحق من ربهم وأما الذين كفروا فيقولون ماذا أراد الله بهذا مثلا يضل به كثيرا ويهدي به كثيرا وما يضل به إلا الفاسقين