Immortality of beings is an indisputable teaching of the Quran mentioned in many verses. The verse “Every soul shall taste of death” (3/185) explains the components of the doctrine and deserves to be relied on and referred to in Quranic eschatology. To explain the theory exactly, it is necessary to answer the questions like: “what is the nature of death?”, “What is the scope of death?”, “What can be the subject of death?” and “What is the death process?” based on this verse and the related verses. The Quranic exegeses from Farqayn (the two major sects of Islam) show that the exegetes do not have the same interpretation and understanding from the teaching. They differ due to the influence of their different philosophical, anthropological, and literal presumptions, as well as their exegetical method. Answering the aforementioned questions, the author of this article believes that approaches like believing in nothingness as an explanation of the nature of death, non-application of the soul to God and its exclusiveness to human being for the analysis of the scope of death, its belonging only to human body and the silence of the Quran on the subject of death process are acceptable viewpoints.