(Al-Qasas) 28 : 51
وَلَقَدْ وَصَّلْنَا لَهُمُ الْقَوْلَ لَعَلَّهُمْ يَتَذَكَّرُونَ
And surely We have conveyed to them the Word so that they might remind others in their heart’s language.
Word mentioned in the verse is Adhikr which is the Speech of the Lord. Since people of the last Messenger who inherited the Book didn’t utilize It and convey It to others, they have become the Arabic Quran reading Fujjar who wronged to their soul. The wrath and curse of the Lord are affected upon them and Hellfire is kept prepared for them as explained in verses 9: 67-68. See explanation 7: 52; 28: 43 and 46.