Surah Al-A'raf — Ayah 167 (7:167)
وَإِذۡ تَأَذَّنَ رَبُّكَ لَيَبۡعَثَنَّ عَلَيۡهِمۡ إِلَىٰ يَوۡمِ ٱلۡقِيَٰمَةِ مَن يَسُومُهُمۡ سُوٓءَ ٱلۡعَذَابِۗ إِنَّ رَبَّكَ لَسَرِيعُ ٱلۡعِقَابِ وَإِنَّهُۥ لَغَفُورٞ رَّحِيمٞ ١٦٧
English translation (Saheeh International)
And [mention] when your Lord declared that He would surely [continue to] send upon them until the Day of Resurrection those who would afflict them with the worst torment. Indeed, your Lord is swift in penalty; but indeed, He is Forgiving and Merciful.
Brief commentary
Mention, O Messenger, when Allah declared in clear terms that He would put over the Jews those who would humiliate and humble them in this life until the Day of Judgement. Your Lord is quick with the punishment for those who go against Him, sometimes punishing them in the worldly life. Yet He is Forgiving to whoever repents to Him from among His servants, and is Merciful to them.