Thus the word of your Lord has come into effect upon those who defiantly disobeyed - that they will not believe.
The Saheeh International Quran Translation
كَذَٰلِكَ حَقَّتْ كَلِمَتُ رَبِّكَ عَلَى ٱلَّذِينَ فَسَقُوٓا۟ أَنَّهُمْ لَا يُؤْمِنُونَThus the word of your Lord has come into effect upon those who defiantly disobeyed - that they will not believe.