(Zumar) 39 : 13
قُلْ إِنِّي أَخَافُ إِنْ عَصَيْتُ رَبِّي عَذَابَ يَوْمٍ عَظِيمٍ
You say: if I disobey My Lord, I fear the punishment of a great day.
This verse commands the Messenger and the believers to warn the Arabic Quran-reading Fujjar, including the hypocrites and their blind followers, who hide and reject Adhikr, that they have severe punishment on the Day of Judgment. See explanation 18: 57, 101; 33: 60-61.