Khan believed that the book "ideologues of political Islam" argue that political power is vital in Islam so that the religion can be upheld as an entire system. He claims that these ideologues develop their position through reference to Sura 5:3. He addresses the issues in the Muslim debate regarding the relation between Islam to former revelations and the idea of a totality in Islam that covers all aspects of life. The "ideologues of political Islam" think that Islam completes earlier revelations by adding the principles on how to create and uphold a perfect society and state. But Khan writes that such notions are "totally baseless." 
In his description of their argument, because the "ideologues" say that "God's religion" was completed only with the revelations sent to Prophet Muhammad, they "seek a total enforcement of the religion." Due to this, "political power" becomes essential for Muslims. He denies this as Sura 5:3 means that it was the last verse revealed to Muhammad and the completion of the Quranic revelations. When these are taken all together, he maintains that they confirm the revelations of earlier prophets, quoting verse 2:285 of the Quran. Khan means that the revelations to the Prophet Muhammad are one and the same as was equally revealed to the earlier prophets. Consequently, he uses Quranic verses to reject the position that Islam adds further political or social teachings to earlier prophetic revelations. Instead, he writes that God asked the Prophet Muhammad to abide by the previous prophets. In short, Islam confirms the truth of earlier revelations. 
In Khan's view, the common monotheistic teachings of calling people to worship and to develop virtues are God's eternal messages. Islam does not add any social and political teachings to the authenticity of earlier Judaic and Christian revelations. So, a state based on Islam is untenable. This line of reasoning can be understood as formulating a platform for pluralism by putting Islam on par with Judaism and Christianity if these religions are properly understood. More importantly, they address the Muslim and non-Muslim positions that hold that Islam is a total and totalizing system, one which always aims for a separate state and the enforcement of its religious laws.