وَلَقَدۡ نَعۡلَمُ أَنَّهُمۡ يَقُولُونَ إِنَّمَا يُعَلِّمُهُۥ بَشَرٞۗ لِّسَانُ ٱلَّذِي يُلۡحِدُونَ إِلَيۡهِ أَعۡجَمِيّٞ وَهَٰذَا لِسَانٌ عَرَبِيّٞ مُّبِينٌ
And indeed We know that they (polytheists and pagans) say: "It is only a human being who teaches him (Muhammad SAW)." The tongue of the man they refer to is foreign, while this (the Quran) is a clear Arabic tongue.
إِنَّ ٱلَّذِينَ لَا يُؤۡمِنُونَ بِـَٔايَٰتِ ٱللَّهِ لَا يَهۡدِيهِمُ ٱللَّهُ وَلَهُمۡ عَذَابٌ أَلِيمٌ
Verily! Those who believe not in the Ayat (proofs, evidences, verses, lessons, signs, revelations, etc.) of Allah, Allah will not guide them and theirs will be a painful torment.
إِنَّمَا يَفۡتَرِي ٱلۡكَذِبَ ٱلَّذِينَ لَا يُؤۡمِنُونَ بِـَٔايَٰتِ ٱللَّهِۖ وَأُوْلَـٰٓئِكَ هُمُ ٱلۡكَٰذِبُونَ
It is only those who believe not in the Ayat (proofs, evidences, verses, lessons, signs, revelations, etc.) of Allah, who fabricate falsehood, and it is they who are liars.
مَن كَفَرَ بِٱللَّهِ مِنۢ بَعۡدِ إِيمَٰنِهِۦٓ إِلَّا مَنۡ أُكۡرِهَ وَقَلۡبُهُۥ مُطۡمَئِنُّۢ بِٱلۡإِيمَٰنِ وَلَٰكِن مَّن شَرَحَ بِٱلۡكُفۡرِ صَدۡرٗا فَعَلَيۡهِمۡ غَضَبٞ مِّنَ ٱللَّهِ وَلَهُمۡ عَذَابٌ عَظِيمٞ
Whoever disbelieved in Allah after his belief, except him who is forced thereto and whose heart is at rest with Faith but such as open their breasts to disbelief, on them is wrath from Allah, and theirs will be a great torment.