An-Nisa' - 4:147

مَّا يَفْعَلُ اللّهُ بِعَذَابِكُمْ إِن شَكَرْتُمْ وَآمَنتُمْ وَكَانَ اللّهُ شَاكِرًا عَلِيمًا
[4:147]
Why should Allah chastise you if you are grateful and believe? And Allah is the Multiplier of rewards, Knowing
What can Allah gain by your punishment, if ye are grateful and ye believe? Nay, it is Allah that recogniseth (all good), and knoweth all things.
What concern hath Allah for your punishment if ye are thankful (for His mercies) and believe (in Him)? Allah was ever Responsive, Aware.