﴿ إِنَّ شَرَّ ٱلدَّوَآبِّ عِندَ ٱللَّهِ ٱلَّذِينَ كَفَرُوا۟ فَهُمْ لَا يُؤْمِنُونَ ﴾

“Verily, the vilest creatures in the sight of God are those who are bent on denying the truth and therefore do not believe.”

Please check ayah 8:57 for complete tafsir.