30ذٰلِكَ مَبلَغُهُم مِنَ العِلمِ ۚ إِنَّ رَبَّكَ هُوَ أَعلَمُ بِمَن ضَلَّ عَن سَبيلِهِ وَهُوَ أَعلَمُ بِمَنِ اهتَدىٰAhmed & SamiraThat (is) their capacity/limit from the knowledge, that truly your Lord, He is more knowledgeable with who was misguided from His way/path , and He is more knowledgeable with who was guided.