One of the main subjects of Islamic Philosophy and Kalam is the existence, unity and attributes of God. Islamic scholars have characterized Allah in the context of the Qur’an and reason and have asserted the evidence of his existence. The knowledge about Allah in Islamic thought is based on the Qur’an. The Qur’an characterized Allah with his names, attributes and acts. In the light of these characterizations, Islamic scholars classified the attributes as zati, tenzihi/selbi, sübuti, fiilî and haberi attributes. In Islamic thought, the discussions mostly experienced on the subuti and haberi attributes and different approaches were proposed about them. The zati attributes are merely attributes to Allah. Negative of these attributes constitute the tenzihi/selbi attributes. The tenzihi attributes mean to deny Allah from the attributes that are deficient. The tenzihi attributes are generally based on the principles of Tevhid and Allah’s unlikeness other beings. The Qur’an described Allah mostly in the context of the Tenzih. In this context, many concepts and characterizations are made in the Qur’an.