Surah Az-Zumar 39:36

أَلَيْسَ ٱللَّهُ بِكَافٍ عَبْدَهُۥ ۖ وَيُخَوِّفُونَكَ بِٱلَّذِينَ مِن دُونِهِۦ ۚ وَمَن يُضْلِلِ ٱللَّهُ فَمَا لَهُۥ مِنْ هَادٍ

Is not Allāh sufficient for His Servant [i.e., Prophet Muḥammad (ﷺ)]? And [yet], they threaten you with those [they worship] other than Him. And whoever Allāh leaves astray - for him there is no guide.

Translation: Saheeh International

Tafsir

Does God not suffice as defender of His servant? the Prophet? Indeed He does. Yet they would frighten you — the address is for him s — of those besides Him namely the idols by telling him that these idols might kill him or render him insane. And whomever God leads astray for him there is no guide.

Excerpt from Tafsir al-Jalalayn, commentary on 39:36, via Quran.com. The reader has the full commentary and 9 more tafsirs.