13:7Those who disbelieve say, “Why was a miracle not sent down to him from his Lord?” You are only a warner, and to every community is a guide.

13:17He sends down water from the sky, and riverbeds flow according to their capacity. The current carries swelling froth. And from what they heat in fire of ornaments or utensils comes a similar froth. Thus God exemplifies truth and falsehood. As for the froth, it is swept away, but what benefits the people remains in the ground. Thus God presents the analogies.

13:27Those who disbelieve say, “If only a miracle was sent down to him from his Lord.” Say, “God leads astray whomever He wills, and He guides to Himself whoever repents.”