When we scrutinise the cause behind the divergence of some of the early Islamic sects, we find that the influence of philosophers and their methodology in justifying sciences is the main reason, especially the science concerning substantiating belief.The early Jahmiyyah, Mu'tazilah, and Asha'irah, who were influenced by these schools of thoughts, intended to refute the philosophers' position in belief matters by using the philosophers' logic and analogy, which was established on Aristotelian logic (which led to establishing ilmul kalaam), and they ended up rejecting and distorting major principles within the Islāmic belief amongst which giving precedence to the intellect (a'ql) over the text (naql: Qur'an and Sunnah).