ذَٰلِكَ بِأَنَّ ٱللَّهَ هُوَ ٱلْحَقُّ وَأَنَّ مَا يَدْعُونَ مِن دُونِهِۦ هُوَ ٱلْبَـٰطِلُ وَأَنَّ ٱللَّهَ هُوَ ٱلْعَلِىُّ ٱلْكَبِيرُ
Zaalika bi annal laaha Huwal haqqu wa anna maa yad'oona min doonihee huwal baatilu wa annal laaha Huwal 'Aliyyul kabeer
So it will be, because it is God alone who is the Truth, and whatever else they invoke is sheer falsehood: it is God who is the Most High, the Most Great.
That is because God is the Truth, and what they call upon besides him is falsehood — and because God is the Most High, the Most Great.