لَا تَعْتَذِرُوا قَدْ كَفَرْتُم بَعْدَ إِيمَانِكُمْ ۚ إِن نَّعْفُ عَن طَائِفَةٍ مِّنكُمْ نُعَذِّبْ طَائِفَةً بِأَنَّهُمْ كَانُوا مُجْرِمِينَ (66)
(9:66) Do not invent excuses now; you have indeed denied the truth after you had professed belief in it. Even if We pardon some of you, We will surely chastise others of you, for they are the guilty ones" *74
*74) That is, "Those foolish buffoons, who take interest in such conversations and mock even at serious things because there is nothing serious in the world for them, may be pardoned. But there are others who mock at these serious things deliberately with evil intentions, because they consider the Messenger and the Way taught by him as ridiculous in spite of their professions of Faith. As their real object is to discourage the believers from making preparations for Jihad, they are criminals and not buffoons; therefore they shall not be pardoned at all "