Surah Al-Isra 17:54

رَّبُّكُمْ أَعْلَمُ بِكُمْ ۖ إِن يَشَأْ يَرْحَمْكُمْ أَوْ إِن يَشَأْ يُعَذِّبْكُمْ ۚ وَمَآ أَرْسَلْنَـٰكَ عَلَيْهِمْ وَكِيلًا

Your Lord is most knowing of you. If He wills, He will have mercy upon you; or if He wills, He will punish you. And We have not sent you, [O Muḥammad], over them as a manager.

Translation: Saheeh International

Tafsir

Your Lord knows you best. If He will He will have mercy on you by way of granting you repentance and faith or if He will for you to be chastised He will chastise you by having you die in disbelief. …

Excerpt from Tafsir al-Jalalayn, commentary on 17:54, via Quran.com. The reader has the full commentary and 9 more tafsirs.