Sura Āl-ʿImrān 3:77

إِنَّ ٱلَّذِينَ يَشْتَرُونَ بِعَهْدِ ٱللَّـهِ وَأَيْمَٰنِهِمْ ثَمَنًا قَلِيلًا أُو۟لَٰٓئِكَ لَا خَلَٰقَ لَهُمْ فِى ٱلْأَخِرَةِ وَلَا يُكَلِّمُهُمُ ٱللَّـهُ وَلَا يَنظُرُ إِلَيْهِمْ يَوْمَ ٱلْقِيَٰمَةِ وَلَا يُزَكِّيهِمْ وَلَهُمْ عَذَابٌ أَلِيمٌ

inna lladhīna yashtarūna biʿahdi allāhi wa-aymānihim thamanan qalīlan ulāʾika lā khalāqa lahum fī l-akhirati wa-lā yukallimuhumu allāhu wa-lā yanẓuru ilayhim yawma l-qiyāmati wa-lā yuzakkīhim wa-lahum ʿadhābun alīmun

As for those who sell the faith they owe to Allah and their own plighted word for a small price, they shall have no portion in the Hereafter: Nor will Allah (Deign to) speak to them or look at them on the Day of Judgment, nor will He cleans them (of sin): They shall have a grievous penalty.

Sura Āl-ʿImrān 3:164

لَقَدْ مَنَّ ٱللَّـهُ عَلَى ٱلْمُؤْمِنِينَ إِذْ بَعَثَ فِيهِمْ رَسُولًا مِّنْ أَنفُسِهِمْ يَتْلُوا۟ عَلَيْهِمْ ءَايَٰتِهِۦ وَيُزَكِّيهِمْ وَيُعَلِّمُهُمُ ٱلْكِتَٰبَ وَٱلْحِكْمَةَ وَإِن كَانُوا۟ مِن قَبْلُ لَفِى ضَلَٰلٍ مُّبِينٍ

la-qad manna allāhu ʿalā l-muʾminīna idh baʿatha fīhim rasūlan min anfusihim yatlū ʿalayhim āyātihi wa-yuzakkīhim wa-yuʿallimuhumu l-kitāba wa-l-ḥikmata wa-in kānū min qablu la-fī ḍalālin mubīnin

Allah did confer a great favour on the believers when He sent among them a messenger from among themselves, rehearsing unto them the Signs of Allah, sanctifying them, and instructing them in Scripture and Wisdom, while, before that, they had been in manifest error.