256لَآ إِكْرَاهَ فِى ٱلدِّينِ ۖ قَد تَّبَيَّنَ ٱلرُّشْدُ مِنَ ٱلْغَىِّ ۚ فَمَن يَكْفُرْ بِٱلطَّـٰغُوتِ وَيُؤْمِنۢ بِٱللَّهِ فَقَدِ ٱسْتَمْسَكَ بِٱلْعُرْوَةِ ٱلْوُثْقَىٰ لَا ٱنفِصَامَ لَهَا ۗ وَٱللَّهُ سَمِيعٌ عَلِيمٌ
257ٱللَّهُ وَلِىُّ ٱلَّذِينَ ءَامَنُوا۟ يُخْرِجُهُم مِّنَ ٱلظُّلُمَـٰتِ إِلَى ٱلنُّورِ ۖ وَٱلَّذِينَ كَفَرُوٓا۟ أَوْلِيَآؤُهُمُ ٱلطَّـٰغُوتُ يُخْرِجُونَهُم مِّنَ ٱلنُّورِ إِلَى ٱلظُّلُمَـٰتِ ۗ أُو۟لَـٰٓئِكَ أَصْحَـٰبُ ٱلنَّارِ ۖ هُمْ فِيهَا خَـٰلِدُونَ
[256-257] There is no compulsion and coercion in regard to religion.285 The right thing has been made distinct from the wrong thing: now whoever rejects taghut 286 and believes in Allah has taken a firm support that never gives way. And Allah (Whose support he takes) hears everything and knows everything. Allah is the Helper and Protector of those who believe in Him: He brings them out of the depths of darkness287 into the light. As for the disbelievers, they have taghut288 as their patron, who drives them out of light into the depths of darkness. These are the people who are doomed to the Fire, wherein they shall live for ever.
285The word "din" implies the concept about Allah as stated in the Ayat al-Kursi above as well as the entire way of life built on it. The verse means that the creed of Islam and its way of life cannot be thrust upon anyone forcibly. As a matter of fact, this cannot be forced upon anyone.
286The word taghut literally applies to everyone who transgresses the limits. The Qur'an uses this word for one who rebels against Allah and claims himself to be the master and sovereign of His servants and forces them to become his servants.
Man's rebellion against Allah has three degrees of criminality: (1) One is fasiq (disobedient) if one professes to be His subject but practically acts against His commandments; (2) One is kafir (disbeliever) if one becomes independent of Him or owes allegiance to someone else; (3) One is taghut if one rebels against Allah and exerts to make His subjects subservient to himself. Such a one may be Satan or a priest or a religious or a political leader or a king or a state. Therefore no one can be a true believer of Allah unless he disowns taghut.
287"Darkness" stands for the darkness of ignorance that causes one to go astray from the Right Way, and to spend all one's efforts and energies in wrong way. In contrast to this, "light" stands for the light of the Truth which enables one to see clearly the Reality and perceive the real aim of life and follow consciously and deliberately the Right Way.
288Though taghut is singular in form, here it is plural in meaning, for the one who rejects Allah becomes a slave not of one but of several forms of taghut, One of these is Satan who goes on tempting him with many false and alluring temptations. Another is his own self that makes him a slave of passions and lusts and misleads him into crooked ways. Then there are others, his wife and children, his kith and kin, his clan and family, his friends and nation, his political and religious leaders and his government. All these are taghut for him and desire to make him a slave of their wishes and ambitions. And this slave of all these masters wastes his whole life in trying to accomplish the impossible feat of pleasing each and every one of them.