This research examines and provides a document on the place of freedom and thought freedom in the path of intellectual elevation in the Qur'an. For this purpose, the verses of the Qur'an were divided into liberating verses and verses related to enslavement as obstacles within the religion. On the other hand, external religious obstacles were evaluated in terms of cultural and religious knowledge. The authors presented some extracted solutions from Nahj al-Balaghah to remove obstacles. The research method is the analysis of concepts based on the inferential method. Based on this, the factors of freedom of thought cause voluntary acts and virtues such as forgiveness and piety, which lead to liberation from internal captivity and moral vices and cause freedom and development of thought. Also, to get rid of intra-religious obstacles, such as blind imitation and not following reason, this research considers solutions such as learning from the past and following reason when encountering ignorant behavior, doubt, suspicion, deception, and apostasy to get free from following the whims of the soul. Extra-religious barriers include the type of religious knowledge in different periods and how to infer verses from Islamic texts. Cultural barriers also cause freedom of thought. Through solutions provided by Nahj al-Balaghah, one can overcome these obstacles, gain more knowledge, strengthen his foundations of faith, and make the way to certainty.