“And of mankind are some who say: We believe in Allah and the Last Day, when they believe not. They think to beguile Allah and those who believe, and they beguile none save themselves; but they perceive not. In their hearts is a disease, and Allah increaseth their disease. A painful doom is theirs because they lie. And when it is said unto them: Make not mischief in the earth, they say: We are peacemakers only. Are not they indeed the mischief makers? But they perceive not.
And when it is said unto them: Believe as the people believe, they say: Shall we believe as the foolish believe? Are not they indeed the foolish? But they know not. And when they fall in with those who believe, they say: We believe; but when they go apart to their devils they declare: Lo! we are with you; verily we did but mock.
Allah (Himself) doth mock them, leaving them to wander blindly on in their contumacy. These are they who purchase error at the price of guidance, so their commerce doth not prosper, neither are they guided.”
Holy Qur’an 2:8-16 (M. Pickthall)