9th century Qur'an.According to William Montgomery Watt, for Muhammad, religion was not a private and individual matter but rather “the total response of his personality to the total situation in which he found himself. He was responding [not only]… to the religious and intellectual aspects of the situation but also to the economic, social, and political pressures to which contemporary Mecca was subject." Bernard Lewis says that there are two important political traditions in Islam – one that views Muhammad as a statesman in Medina, and another that views him as a rebel in Mecca. He sees Islam itself as a type of revolution that greatly changed the societies into which the new religion was brought.