Mockery is an example of poor morality which Allah certainly does not approve of. There are many manifestations of mockery in societies in which the values of ignorance are predominant, including mocking the imperfections or defects of others, and calling one another by unpleasant nicknames. In the Quran, Allah warns people against this evil act as follows:
Woe to every scorner and mocker. (Surat al-Humaza: 1)
Another type of mockery referred to by Allah in the Qur'an is that of believers by unbelievers. It is revealed in the Qur'an that because they were unable to grasp that the believers were on the true path, those who believed themselves to be superior to the believers used to mock them, displaying the greatest unreason. Some of the verses on this subject read:
Those who did evil used to laugh at those who believed. When they passed by them, they would wink at one another. (Surat al-Mutaffifin: 29-30)
Yet, Allah reveals that these people are greatly mistaken and heralds the tragic end they will come to as follows:
So today those who believe are laughing at the disbelievers, on couches, gazing in wonder. Have the disbelievers been rewarded for what they did? (Surat al-Mutaffifin: 34-36)
Furthermore, Allah describes in the Qur'an those who ignorantly hold Islam and His revelations up to mockery, and reveals that these people reject every warning from Allah and His messengers. They are the people who do not measure the power of Allah to its full extent and ignore the fact that they will be judged in His presence. Yet, these people will be bewildered in the Hereafter and will be repaid for the mockery they used to engage in. This fact is clearly mentioned in the Qur'an:
Those are the people who reject their Lord's Signs and the meeting with Him. Their actions will come to nothing and, on the Day of Rising, we will not assign them any weight. That is their repayment—Hell—because they disbelieved and made a mockery of My Signs and of My Messengers. (Surat al-Kahf: 105-106)
Follow the best that has been sent down to you from your Lord before the punishment comes upon you suddenly when you are not expecting it;lest anyone should say, "Alas for me for neglecting what Allah was due, and being one of the scoffers!" (Surat az-Zumar: 55-56)