(يُرِيدُونَ أَن يُطْفِئُوا نُورَ اللَّهِ بِأَفْوَاهِهِمْ) (They want to extinguish the light of Allah with their mouths): Religion is the light of values that guides people in the darkness of life. They cannot extinguish the light of Allah (swt), for there is a distinction between the source of light and the means of illumination. Even in the worldly life, when a person wants to extinguish light, they cannot extinguish the source of light. They may throw a stone at the bulb or cut off the electricity to switch off the light, but in this case they do not extinguish the source of illumination. How about Allah (swt), the true source of Light!!

Therefore, they cannot extinguish the Light of Allah (swt) with their mouths, lies, deceptions, or tricks. Allah (swt) sent His messenger (swt) with guidance, the true religion, and the straight path and he is the last Prophet. Thus, no matter how much the Jews and polytheists conspire against the Prophet Muhammad (saws), they will never be able to extinguish the light of Allah, the Most High. The light of guidance is the straight path brought by all the prophets.

(وَيَأْبَى اللَّهُ إِلَّا أَن يُتِمَّ نُورَهُ وَلَوْ كَرِهَ الْكَافِرُونَ) (but Allah will not allow except that His light should be perfected, although the disbelievers dislike it.): Allah (swt) has already decided the perfection of this light, and the light has indeed been perfected. He, Glorified and Exalted, says:

  الْيَوْمَ أَكْمَلْتُ لَكُمْ دِينَكُمْ وَأَتْمَمْتُ عَلَيْكُمْ نِعْمَتِي وَرَضِيتُ لَكُمُ الْإِسْلَامَ دِينًا  

(This day I have perfected for you your religion and completed My favor upon you and have approved for you Islam as religion) (Al-Maidah: 3)

Thus, the light was perfected with the advent of the greatest messenger (saws), bringing the Quran, a book that contains a healing for the hearts. Allah (swt) referred to it as light:

  قَدْ جَاءَكُم مِّنَ اللَّهِ نُورٌ وَكِتَابٌ مُّبِينٌ 

(There has come to you from Allah a light and a clear Book) (Al-Maidah: 15)

He (swt) also ststed:

  وَنُنَزِّلُ مِنَ الْقُرْآنِ مَا هُوَ شِفَاءٌ وَرَحْمَةٌ لِّلْمُؤْمِنِينَ 

(And We send down of the Quran that which is healing and mercy for the believers) (Al-Isra’: 82)

All the heavenly books have come with guidance and light:

  إِنَّا أَنزَلْنَا التَّوْرَاةَ فِيهَا هُدًى وَنُورٌ 

(Indeed, We sent down the Torah, in which was guidance and light) (Al-Maidah: 44)

  وَقَفَّيْنَا عَلَىٰ آثَارِهِم بِعِيسَى ابْنِ مَرْيَمَ مُصَدِّقًا لِّمَا بَيْنَ يَدَيْهِ مِنَ التَّوْرَاةِ ۖ وَآتَيْنَاهُ الْإِنجِيلَ فِيهِ هُدًى وَنُورٌ 

(And We sent, following in their footsteps, Isa (Jesus), the son of Maryam (Mary), confirming that which came before him in the Torah; and We gave him the Gospel, in which was guidance and light) (Al-Maidah: 46)

It is guidance and light, and this light is the light of values.