Surah Al-Isra — Ayah 8 (17:8)
عَسَىٰ رَبُّكُمۡ أَن يَرۡحَمَكُمۡۚ وَإِنۡ عُدتُّمۡ عُدۡنَاۚ وَجَعَلۡنَا جَهَنَّمَ لِلۡكَٰفِرِينَ حَصِيرًا ٨
English translation (Saheeh International)
[Then Allāh said], "It is expected, [if you repent], that your Lord will have mercy upon you. But if you return [to sin], We will return [to punishment]. And We have made Hell, for the disbelievers, a prison-bed."
Brief commentary
Perhaps your Lord - O Israelites - will have mercy on you after this severe reprisal if you repent to Him and do good actions. But if you revert to causing corruption a third time or more than that, I will revert to taking reprisals from you. I have made Hell a prison for the disbelievers, from which they will not find any release.