Which belief system focuses on the worship of a single deity?

The belief system that emphasizes the worship of a single deity is monotheism. This perspective is characterized by the belief in one God who is often seen as the creator and sustainer of the universe. Monotheistic religions, such as Christianity, Islam, and Judaism, each have their interpretations of God’s nature, attributes, and the relationship between God and humanity.

In contrast, polytheism, which is not the correct answer, involves the worship of multiple gods. Agnosticism represents a position of uncertainty regarding the existence of a deity, rather than a belief in one. Atheism, on the other hand, denies the existence of any deities at all, which also positions it outside of the framework of believing in a single god. Therefore, the understanding of monotheism as the focus on one single, supreme deity is key to recognizing its differences from the other belief systems.