The Punishment of the Disbeliever and the Reward of the Believer on the Day of Resurrection

Having stated that the ultimate destiny of the followers of Iblis will be the blazing Fire, Allah then tells us that for those who disbelieve there will be a severe punishment. This is because they obeyed the Shaytan and disobeyed Ar-Rahman. And He tells us that those who believed in Allah and His Messengers

وَعَمِلُواْ الصَّـلِحَـتِ لَهُم مَّغْفِرَةٌ

Commentary

The word: غَرُ‌ورُ‌ (gharur) is an emphatic form of an adjective that means one who is very deceiving (hence, rendered here as 'big deceiver' ). It refers to the Shaitan (Satan) whose sole job is to deceive people and throw them into disbelief and sin. And the expression لَا يَغُرَّ‌نَّكُم بِاللَّـهِ الْغَرُ‌ورُ‌ (5) means 'nor should you be deceived about Allah'. To explain this deception, it can be said that the Shaitan may not, by showing your evil deeds as good, cause you to become so involved with these that you reach the stage when you go on committing a sin and, at the same time, keep thinking that you are of those accepted in the sight of Allah, and that you will not have to undergo any punishment.' (Qurtubi)