﴿ ٱللَّهُ وَلِىُّ ٱلَّذِينَ ءَامَنُوا۟ يُخْرِجُهُم مِّنَ ٱلظُّلُمَٰتِ إِلَى ٱلنُّورِ ۖ وَٱلَّذِينَ كَفَرُوٓا۟ أَوْلِيَآؤُهُمُ ٱلطَّٰغُوتُ يُخْرِجُونَهُم مِّنَ ٱلنُّورِ إِلَى ٱلظُّلُمَٰتِ ۗ أُو۟لَٰٓئِكَ أَصْحَٰبُ ٱلنَّارِ ۖ هُمْ فِيهَا خَٰلِدُونَ ﴾

“God is near unto those who have faith, taking them out of deep darkness into the light - whereas near unto those who are bent on denying the truth are the powers of evil that take them out of the light into darkness deep: it is they who are destined for the fire, therein to abide.”

Commentary This verse also tells us that faith ('Iman ایمان ) is the greatest blessing and disbelief (kufr کفر ) is the greatest misfortune, and that there is darkness in friendship with those who disbelieve (kuffar کُفار ).