﴿ إِنَّهُمْ كَانُوٓا۟ إِذَا قِيلَ لَهُمْ لَآ إِلَٰهَ إِلَّا ٱللَّهُ يَسْتَكْبِرُونَ ﴾

“for, behold, whenever they were told, “There is no deity save God,” they would glory in their arrogance”

For truly it was they who in other words it was these sinners who — given the context that follows — when it was said to them ‘There is no god except God’ used to be scornful