At the beginning of the 21st century, we find ourselves in what has been described by the author as a “post God is dead age”, where book after book is written that simply rejects the existence of God. Therefore, our students of theology, religious studies and philosophy who want to learn about the unfolding of the Quranic image of God would like to receive it in as compact form as possible. This is the core of the Islamic doctrine. In the search for truth, or rather on the path of encountering and finding God, many people and especially students would like to learn about the Quranic image of God. Monotheism, or Tauhid, i.e., the theology of the unity and oneness of God, is one of the most fundamental principles of the theological teachings of the Hl. Quran. There are few verses in the Quran in which the name of God is not mentioned, either directly or indirectly. All these names point to the oneness and uniqueness of God, to monotheism. The Islamic image of God, which has its origins in the prophetic traditions and ultimately in the Quran, is a purely monotheistic image of God. Yes, Islam is a monotheistic religion, i.e. it confesses only one God. This puts it in a group with the Jewish and Christian religions and completes their doctrine of God.