You are reading a tafsir for the group of verses 3:176 to 3:177
ولا يحزنك الذين يسارعون في الكفر انهم لن يضروا الله شييا يريد الله الا يجعل لهم حظا في الاخرة ولهم عذاب عظيم ١٧٦ ان الذين اشتروا الكفر بالايمان لن يضروا الله شييا ولهم عذاب اليم ١٧٧
وَلَا يَحْزُنكَ ٱلَّذِينَ يُسَـٰرِعُونَ فِى ٱلْكُفْرِ ۚ إِنَّهُمْ لَن يَضُرُّوا۟ ٱللَّهَ شَيْـًۭٔا ۗ يُرِيدُ ٱللَّهُ أَلَّا يَجْعَلَ لَهُمْ حَظًّۭا فِى ٱلْـَٔاخِرَةِ ۖ وَلَهُمْ عَذَابٌ عَظِيمٌ ١٧٦ إِنَّ ٱلَّذِينَ ٱشْتَرَوُا۟ ٱلْكُفْرَ بِٱلْإِيمَـٰنِ لَن يَضُرُّوا۟ ٱللَّهَ شَيْـًۭٔا وَلَهُمْ عَذَابٌ أَلِيمٌۭ ١٧٧
undefined
undefined
undefined
undefined
undefined
undefined
undefined
undefined
undefined
undefined
undefined
undefined
undefined
undefined
undefined
undefined
undefined
undefined
undefined
undefined
undefined
undefined
undefined
undefined
undefined
undefined
undefined
undefined
undefined
undefined
undefined
undefined
undefined
undefined
undefined
undefined
3

Previous verses mentioned the treachery and ill-will of the hypocrites. The present verses comfort the Holy Prophet ﷺ asking him not to grieve over the mischief made by the disbelievers for they cannot harm him in any way.

The last verse (178) carries a refutation of the false notion about disbelievers: How can they, while obviously prospering in the present world, be regarded as victims of Allah's wrath and rejection?