In conclusion, our exploration of the six occurrences of the word ummy in the Quran consistently supports the interpretation of ummy as ‘Gentile’ – a person who has not received previous scriptures – rather than the commonly misconceived notion of ‘illiterate.’ This analysis not only enhances our understanding of the Quranic text but also underscores the importance of relying on the Quran itself to provide answers rather than the conjecture of others.
[6:112] We have permitted the enemies of every prophet—human and jinn devils—to inspire in each other fancy words, in order to deceive. Had your Lord willed, they would not have done it. You shall disregard them and their fabrications.
وَكَذَٰلِكَ جَعَلْنَا لِكُلِّ نَبِىٍّ عَدُوًّا شَيَـٰطِينَ ٱلْإِنسِ وَٱلْجِنِّ يُوحِى بَعْضُهُمْ إِلَىٰ بَعْضٍ زُخْرُفَ ٱلْقَوْلِ غُرُورًا وَلَوْ شَآءَ رَبُّكَ مَا فَعَلُوهُ فَذَرْهُمْ وَمَا يَفْتَرُونَ
[6:113] This is to let the minds of those who do not believe in the Hereafter listen to such fabrications, and accept them, and thus expose their real convictions.
وَلِتَصْغَىٰٓ إِلَيْهِ أَفْـِٔدَةُ ٱلَّذِينَ لَا يُؤْمِنُونَ بِٱلْـَٔاخِرَةِ وَلِيَرْضَوْهُ وَلِيَقْتَرِفُوا۟ مَا هُم مُّقْتَرِفُونَ
[6:114] Shall I seek other than GOD as an arbitrator, when He has revealed to you this book fully detailed? Those who received the scripture recognize that it has been revealed from your Lord, truthfully. You shall not harbor any doubt.
أَفَغَيْرَ ٱللَّهِ أَبْتَغِى حَكَمًا وَهُوَ ٱلَّذِىٓ أَنزَلَ إِلَيْكُمُ ٱلْكِتَـٰبَ مُفَصَّلًا وَٱلَّذِينَ ءَاتَيْنَـٰهُمُ ٱلْكِتَـٰبَ يَعْلَمُونَ أَنَّهُۥ مُنَزَّلٌ مِّن رَّبِّكَ بِٱلْحَقِّ فَلَا تَكُونَنَّ مِنَ ٱلْمُمْتَرِينَ
[6:115] The word of your Lord is complete, in truth and justice. Nothing shall abrogate His words. He is the Hearer, the Omniscient.
وَتَمَّتْ كَلِمَتُ رَبِّكَ صِدْقًا وَعَدْلًا لَّا مُبَدِّلَ لِكَلِمَـٰتِهِۦ وَهُوَ ٱلسَّمِيعُ ٱلْعَلِيمُ
[6:116] If you obey the majority of people on earth, they will divert you from the path of GOD. They follow only conjecture; they only guess.
وَإِن تُطِعْ أَكْثَرَ مَن فِى ٱلْأَرْضِ يُضِلُّوكَ عَن سَبِيلِ ٱللَّهِ إِن يَتَّبِعُونَ إِلَّا ٱلظَّنَّ وَإِنْ هُمْ إِلَّا يَخْرُصُونَ
Taken from: https://qurantalk.gitbook.io/muhammad-was-not-illiterate/ummy-illiterate/conclusion