﴿ إِنَّمَا ذَٰلِكُمُ ٱلشَّيْطَٰنُ يُخَوِّفُ أَوْلِيَآءَهُۥ فَلَا تَخَافُوهُمْ وَخَافُونِ إِن كُنتُم مُّؤْمِنِينَ ﴾

“It is but Satan who instils [into you] fear of his allies: so fear them not, but fear Me, if you are [truly] believers!”

That namely the one saying to you ‘The people have gathered against you’ to the end of the verse is only Satan making you fear his friends the disbelievers therefore do not fear them; but fear Me lest you abandon My command if you are truly believers.