6 : 165
وَهُوَ ٱلَّذِي جَعَلَكُمۡ خَلَٰٓئِفَ ٱلۡأَرۡضِ وَرَفَعَ بَعۡضَكُمۡ فَوۡقَ بَعۡضٖ دَرَجَٰتٖ لِّيَبۡلُوَكُمۡ فِي مَآ ءَاتَىٰكُمۡۗ إِنَّ رَبَّكَ سَرِيعُ ٱلۡعِقَابِ وَإِنَّهُۥ لَغَفُورٞ رَّحِيمُۢ
And it is He who has made you successors upon the earth and has raised some of you above others in degrees [of rank] that He may try you through what He has given you. Indeed, your Lord is swift in penalty; but indeed, He is Forgiving and Merciful.