Quran 40:85 — Forgiver (Ghafer)

فَلَم يَكُ يَنفَعُهُم إيمٰنُهُم لَمّا رَأَوا بَأسَنا ۖ سُنَّتَ اللَّهِ الَّتى قَد خَلَت فى عِبادِهِ ۖ وَخَسِرَ هُنالِكَ الكٰفِرونَ

Their belief then could not help them in the least, once they saw our retribution. Such is GOD's system that has been established to deal with His creatures; the disbelievers are always doomed.

[40:84] Subsequently, when they saw our retribution they said, "Now we believe in GOD ALONE, and we now disbelieve in the idol worship that we used to practice."