Surah Ali 'Imran 3:175

إِنَّمَا ذَٰلِكُمُ ٱلشَّيْطَـٰنُ يُخَوِّفُ أَوْلِيَآءَهُۥ فَلَا تَخَافُوهُمْ وَخَافُونِ إِن كُنتُم مُّؤْمِنِينَ

That is only Satan who frightens [you] of his supporters. So fear them not, but fear Me, if you are [indeed] believers.

Translation: Saheeh International

Tafsir

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.

Excerpt from Tafsir al-Jalalayn, commentary on 3:175, via Quran.com. The reader has the full commentary and 9 more tafsirs.