فَلَمْ يَكُ يَنْفَعُهُمْ اِيْمَانُهُمْ لَمَّا رَاَوْا بَأْسَنَا ۗسُنَّتَ اللّٰهِ الَّتِيْ قَدْ خَلَتْ فِيْ عِبَادِهِۚ وَخَسِرَ هُنَالِكَ الْكٰفِرُوْنَ ࣖ ( غافر: ٨٥ )
Falam yaku tanfa 'uhum eemaanuhum lammaa ra-aw baasana sunnatal laahil latee qad khalat fee 'ibaadihee wa khasira hunaalikal kaafiroon (Ghāfir 40:85)
Sahih International:
But never did their faith benefit them once they saw Our punishment. [It is] the established way of Allah which has preceded among His servants. And the disbelievers thereupon lost [all]. (Ghafir [40] : 85)
1 Mufti Taqi Usmani
But, their profession of faith was not (competent) to benefit them, once they had seen Our punishment - a customary practice of Allah that has been there all along in the matter of His servants - and hence, the disbelievers became the losers.