يَـٰٓأَيُّهَا ٱلَّذِينَ أُوتُواْ ٱلۡكِتَٰبَ ءَامِنُواْ بِمَا نَزَّلۡنَا مُصَدِّقٗا لِّمَا مَعَكُم مِّن قَبۡلِ أَن نَّطۡمِسَ وُجُوهٗا فَنَرُدَّهَا عَلَىٰٓ أَدۡبَارِهَآ أَوۡ نَلۡعَنَهُمۡ كَمَا لَعَنَّآ أَصۡحَٰبَ ٱلسَّبۡتِۚ وَكَانَ أَمۡرُ ٱللَّهِ مَفۡعُولًا
O you who have been given the Scripture (Jews and Christians)! Believe in what We have revealed (to Muhammad SAW) confirming what is (already) with you, before We efface faces (by making them like the back of necks; without nose, mouth, eyes, etc.) and turn them hindwards, or curse them as We cursed the Sabbath-breakers. And the Commandment of Allah is always executed.
إِنَّ ٱللَّهَ لَا يَغۡفِرُ أَن يُشۡرَكَ بِهِۦ وَيَغۡفِرُ مَا دُونَ ذَٰلِكَ لِمَن يَشَآءُۚ وَمَن يُشۡرِكۡ بِٱللَّهِ فَقَدِ ٱفۡتَرَىٰٓ إِثۡمًا عَظِيمًا
Verily, Allah forgives not that partners should be set up with him in worship, but He forgives except that (anything else) to whom He pleases, and whoever sets up partners with Allah in worship, he has indeed invented a tremendous sin.
أَلَمۡ تَرَ إِلَى ٱلَّذِينَ يُزَكُّونَ أَنفُسَهُمۚ بَلِ ٱللَّهُ يُزَكِّي مَن يَشَآءُ وَلَا يُظۡلَمُونَ فَتِيلًا
Have you not seen those who claim sanctity for themselves. Nay - but Allah sanctifies whom He pleases, and they will not be dealt with injustice even equal to the extent of a Fatila (A scalish thread in the long slit of a date-stone).