Surah Al-Qasas 28:50

فَإِن لَّمْ يَسْتَجِيبُوا۟ لَكَ فَٱعْلَمْ أَنَّمَا يَتَّبِعُونَ أَهْوَآءَهُمْ ۚ وَمَنْ أَضَلُّ مِمَّنِ ٱتَّبَعَ هَوَىٰهُ بِغَيْرِ هُدًى مِّنَ ٱللَّهِ ۚ إِنَّ ٱللَّهَ لَا يَهْدِى ٱلْقَوْمَ ٱلظَّـٰلِمِينَ

But if they do not respond to you - then know that they only follow their [own] desires. And who is more astray than one who follows his desire without guidance from Allāh? Indeed, Allāh does not guide the wrongdoing people.

Translation: Saheeh International

Tafsir

Then if they do not respond to you regarding your invitation to them to bring a Scripture know that they are only following their desires in persisting in their disbelief. And who is more astray than he who follows his desire without any guidance from God? in other words there is no one more astray than such a person. …

Excerpt from Tafsir al-Jalalayn, commentary on 28:50, via Quran.com. The reader has the full commentary and 9 more tafsirs.