Quran 17:47 — The Children of Israel (Bani Israel)

نَحنُ أَعلَمُ بِما يَستَمِعونَ بِهِ إِذ يَستَمِعونَ إِلَيكَ وَإِذ هُم نَجوىٰ إِذ يَقولُ الظّٰلِمونَ إِن تَتَّبِعونَ إِلّا رَجُلًا مَسحورًا

We are fully aware of what they hear, when they listen to you, and when they conspire secretly—the disbelievers say,"You are following a crazy man."

[17:46] We place shields around their minds, to prevent them from understanding it, and deafness in their ears. And when you preach your Lord, using the Quran alone,* they run away in aversion.

[17:48] Note how they describe you, and how this causes them to stray off the path.