Stubbornness of the disbelievers

قَدْ نَعْلَمُ إِنَّهُۥ لَيَحْزُنُكَ ٱلَّذِى يَقُولُونَ ۖ فَإِنَّهُمْ لَا يُكَذِّبُونَكَ وَلَـٰكِنَّ ٱلظَّـٰلِمِينَ بِـَٔايَـٰتِ ٱللَّهِ يَجْحَدُونَ

We know that you, [O Muḥammad], are saddened by what they say. And indeed, they do not call you untruthful, but it is the verses of Allāh that the wrongdoers reject.

بَلْ عَجِبْتَ وَيَسْخَرُونَ

But you wonder, while they mock,

فَقَالَ إِنْ هَـٰذَآ إِلَّا سِحْرٌ يُؤْثَرُ

And said, "This is not but magic imitated [from others].

بَلِ ٱلَّذِينَ كَفَرُوا۟ يُكَذِّبُونَ

But those who have disbelieved deny,