Surah An-Najm 53:30

ذَٰلِكَ مَبْلَغُهُم مِّنَ ٱلْعِلْمِ ۚ إِنَّ رَبَّكَ هُوَ أَعْلَمُ بِمَن ضَلَّ عَن سَبِيلِهِۦ وَهُوَ أَعْلَمُ بِمَنِ ٱهْتَدَىٰ

That is their sum of knowledge. Indeed, your Lord is most knowing of who strays from His way, and He is most knowing of who is guided.

Translation: Saheeh International

Tafsir

That namely the desire of this world is the full extent of their knowledge that is the limit of their knowledge namely that they have preferred this life to that of the Hereafter. …

Excerpt from Tafsir al-Jalalayn, commentary on 53:30, via Quran.com. The reader has the full commentary and 9 more tafsirs.